CINXE.COM

<!doctype html> <html lang="en-US"> <head>  <script> (function(w, d, s, l, i) { w[l] = w[l] || []; w[l].push({ 'gtm.start': new Date().getTime(), event: 'gtm.js' }); var f = d.getElementsByTagName(s)[0], j = d.createElement(s), dl = l != 'dataLayer' ? '&l=' + l : ''; j.async = true; j.src = 'https://www.googletagmanager.com/gtm.js?id=' + i + dl; f.parentNode.insertBefore(j, f); })(window, document, 'script', 'dataLayer', 'GTM-MG7FFTZ'); </script>   <script type="text/javascript" src="//script.crazyegg.com/pages/scripts/0117/3187.js" async="async"></script>  <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="profile" href="http://gmpg.org/xfn/11"> <meta name='robots' content='index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1' />  <title>Respiratory Risk Report: Week of March 22, 2025</title> <meta name="description" content="We test wastewater nationwide for influenza A and B, respiratory syncytial virus (RSV), and SARS-CoV-2. In this series, we’ll guide you through the wealth of data we’ve gathered to shed light on emerging trends in respiratory virus transmission. Our goal is to equip you with information to make informed decisions." /> <link rel="canonical" href="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/" /> <meta property="og:locale" content="en_US" /> <meta property="og:type" content="article" /> <meta property="og:title" content="Respiratory Risk Report: Week of March 22, 2025" /> <meta property="og:description" content="We test wastewater nationwide for influenza A and B, respiratory syncytial virus (RSV), and SARS-CoV-2. In this series, we’ll guide you through the wealth of data we’ve gathered to shed light on emerging trends in respiratory virus transmission. Our goal is to equip you with information to make informed decisions." /> <meta property="og:url" content="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/" /> <meta property="og:site_name" content="Biobot Analytics" /> <meta property="og:image" content="http://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328.png" /> <meta property="og:image:width" content="1362" /> <meta property="og:image:height" content="1362" /> <meta property="og:image:type" content="image/png" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:label1" content="Est. reading time" /> <meta name="twitter:data1" content="3 minutes" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"WebPage","@id":"https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/","url":"https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/","name":"Respiratory Risk Report: Week of March 22, 2025","isPartOf":{"@id":"https://biobot.io/#website"},"primaryImageOfPage":{"@id":"https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/#primaryimage"},"image":{"@id":"https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/#primaryimage"},"thumbnailUrl":"https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328.png","datePublished":"2025-03-28T18:54:35+00:00","description":"We test wastewater nationwide for influenza A and B, respiratory syncytial virus (RSV), and SARS-CoV-2. In this series, we’ll guide you through the wealth of data we’ve gathered to shed light on emerging trends in respiratory virus transmission. Our goal is to equip you with information to make informed decisions.","breadcrumb":{"@id":"https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/#primaryimage","url":"https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328.png","contentUrl":"https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328.png","width":1362,"height":1362},{"@type":"BreadcrumbList","@id":"https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://biobot.io/"},{"@type":"ListItem","position":2,"name":"Risk Reports","item":"https://biobot.io/risk-reports/"},{"@type":"ListItem","position":3,"name":"COVID-19, Influenza, and RSV Wastewater Monitoring in the U.S. | Week of March 22, 2025"}]},{"@type":"WebSite","@id":"https://biobot.io/#website","url":"https://biobot.io/","name":"Biobot Analytics","description":"We are global leaders in wastewater epidemiology","publisher":{"@id":"https://biobot.io/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://biobot.io/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https://biobot.io/#organization","name":"Biobot Analytics","url":"https://biobot.io/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https://biobot.io/#/schema/logo/image/","url":"https://biobot.io/wp-content/uploads/2021/08/screenshot.png","contentUrl":"https://biobot.io/wp-content/uploads/2021/08/screenshot.png","width":1200,"height":900,"caption":"Biobot Analytics"},"image":{"@id":"https://biobot.io/#/schema/logo/image/"}}]}</script>  <link rel='dns-prefetch' href='//js.hs-scripts.com' /> <link rel="alternate" type="application/rss+xml" title="Biobot Analytics » Feed" href="https://biobot.io/feed/" /> <link rel="alternate" type="application/rss+xml" title="Biobot Analytics » Comments Feed" href="https://biobot.io/comments/feed/" /> <script type="text/javascript"> /* <![CDATA[ */ window._wpemojiSettings = {"baseUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/72x72\/","ext":".png","svgUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/svg\/","svgExt":".svg","source":{"concatemoji":"https:\/\/biobot.io\/wp-includes\/js\/wp-emoji-release.min.js?ver=6.5.5"}}; /*! This file is auto-generated */ !function(i,n){var o,s,e;function c(e){try{var t={supportTests:e,timestamp:(new Date).valueOf()};sessionStorage.setItem(o,JSON.stringify(t))}catch(e){}}function p(e,t,n){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);var t=new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data),r=(e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(n,0,0),new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data));return t.every(function(e,t){return e===r[t]})}function u(e,t,n){switch(t){case"flag":return n(e,"\ud83c\udff3\ufe0f\u200d\u26a7\ufe0f","\ud83c\udff3\ufe0f\u200b\u26a7\ufe0f")?!1:!n(e,"\ud83c\uddfa\ud83c\uddf3","\ud83c\uddfa\u200b\ud83c\uddf3")&&!n(e,"\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f","\ud83c\udff4\u200b\udb40\udc67\u200b\udb40\udc62\u200b\udb40\udc65\u200b\udb40\udc6e\u200b\udb40\udc67\u200b\udb40\udc7f");case"emoji":return!n(e,"\ud83d\udc26\u200d\u2b1b","\ud83d\udc26\u200b\u2b1b")}return!1}function f(e,t,n){var r="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?new OffscreenCanvas(300,150):i.createElement("canvas"),a=r.getContext("2d",{willReadFrequently:!0}),o=(a.textBaseline="top",a.font="600 32px Arial",{});return e.forEach(function(e){o[e]=t(a,e,n)}),o}function t(e){var t=i.createElement("script");t.src=e,t.defer=!0,i.head.appendChild(t)}"undefined"!=typeof Promise&&(o="wpEmojiSettingsSupports",s=["flag","emoji"],n.supports={everything:!0,everythingExceptFlag:!0},e=new Promise(function(e){i.addEventListener("DOMContentLoaded",e,{once:!0})}),new Promise(function(t){var n=function(){try{var e=JSON.parse(sessionStorage.getItem(o));if("object"==typeof e&&"number"==typeof e.timestamp&&(new Date).valueOf()<e.timestamp+604800&&"object"==typeof e.supportTests)return e.supportTests}catch(e){}return null}();if(!n){if("undefined"!=typeof Worker&&"undefined"!=typeof OffscreenCanvas&&"undefined"!=typeof URL&&URL.createObjectURL&&"undefined"!=typeof Blob)try{var e="postMessage("+f.toString()+"("+[JSON.stringify(s),u.toString(),p.toString()].join(",")+"));",r=new Blob([e],{type:"text/javascript"}),a=new Worker(URL.createObjectURL(r),{name:"wpTestEmojiSupports"});return void(a.onmessage=function(e){c(n=e.data),a.terminate(),t(n)})}catch(e){}c(n=f(s,u,p))}t(n)}).then(function(e){for(var t in e)n.supports[t]=e[t],n.supports.everything=n.supports.everything&&n.supports[t],"flag"!==t&&(n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&n.supports[t]);n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&!n.supports.flag,n.DOMReady=!1,n.readyCallback=function(){n.DOMReady=!0}}).then(function(){return e}).then(function(){var e;n.supports.everything||(n.readyCallback(),(e=n.source||{}).concatemoji?t(e.concatemoji):e.wpemoji&&e.twemoji&&(t(e.twemoji),t(e.wpemoji)))}))}((window,document),window._wpemojiSettings); /* ]]> */ </script> <style id='wp-emoji-styles-inline-css' type='text/css'> img.wp-smiley, img.emoji { display: inline !important; border: none !important; box-shadow: none !important; height: 1em !important; width: 1em !important; margin: 0 0.07em !important; vertical-align: -0.1em !important; background: none !important; padding: 0 !important; } </style> <link rel='stylesheet' id='wp-block-library-css' href='https://biobot.io/wp-includes/css/dist/block-library/style.min.css?ver=6.5.5&subver=1715973397' type='text/css' media='all' /> <style id='wp-block-library-theme-inline-css' type='text/css'> .wp-block-audio figcaption{color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-audio figcaption{color:#ffffffa6}.wp-block-audio{margin:0 0 1em}.wp-block-code{border:1px solid #ccc;border-radius:4px;font-family:Menlo,Consolas,monaco,monospace;padding:.8em 1em}.wp-block-embed figcaption{color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-embed figcaption{color:#ffffffa6}.wp-block-embed{margin:0 0 1em}.blocks-gallery-caption{color:#555;font-size:13px;text-align:center}.is-dark-theme .blocks-gallery-caption{color:#ffffffa6}.wp-block-image figcaption{color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-image figcaption{color:#ffffffa6}.wp-block-image{margin:0 0 1em}.wp-block-pullquote{border-bottom:4px solid;border-top:4px solid;color:currentColor;margin-bottom:1.75em}.wp-block-pullquote cite,.wp-block-pullquote footer,.wp-block-pullquote__citation{color:currentColor;font-size:.8125em;font-style:normal;text-transform:uppercase}.wp-block-quote{border-left:.25em solid;margin:0 0 1.75em;padding-left:1em}.wp-block-quote cite,.wp-block-quote footer{color:currentColor;font-size:.8125em;font-style:normal;position:relative}.wp-block-quote.has-text-align-right{border-left:none;border-right:.25em solid;padding-left:0;padding-right:1em}.wp-block-quote.has-text-align-center{border:none;padding-left:0}.wp-block-quote.is-large,.wp-block-quote.is-style-large,.wp-block-quote.is-style-plain{border:none}.wp-block-search .wp-block-search__label{font-weight:700}.wp-block-search__button{border:1px solid #ccc;padding:.375em .625em}:where(.wp-block-group.has-background){padding:1.25em 2.375em}.wp-block-separator.has-css-opacity{opacity:.4}.wp-block-separator{border:none;border-bottom:2px solid;margin-left:auto;margin-right:auto}.wp-block-separator.has-alpha-channel-opacity{opacity:1}.wp-block-separator:not(.is-style-wide):not(.is-style-dots){width:100px}.wp-block-separator.has-background:not(.is-style-dots){border-bottom:none;height:1px}.wp-block-separator.has-background:not(.is-style-wide):not(.is-style-dots){height:2px}.wp-block-table{margin:0 0 1em}.wp-block-table td,.wp-block-table th{word-break:normal}.wp-block-table figcaption{color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-table figcaption{color:#ffffffa6}.wp-block-video figcaption{color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-video figcaption{color:#ffffffa6}.wp-block-video{margin:0 0 1em}.wp-block-template-part.has-background{margin-bottom:0;margin-top:0;padding:1.25em 2.375em} </style> <link rel='stylesheet' id='biobot_publications-cgb-style-css-css' href='https://biobot.io/wp-content/plugins/biobot-publications/dist/blocks.style.build.css?subver=1715973397' type='text/css' media='all' /> <link rel='stylesheet' id='biobot_team-cgb-style-css-css' href='https://biobot.io/wp-content/plugins/biobot-team/dist/blocks.style.build.css?subver=1715973397' type='text/css' media='all' /> <link rel='stylesheet' id='plethoraplugins-tabs-style-css' href='https://biobot.io/wp-content/plugins/plethora-tabs-accordions/build/style-index.css?ver=1.1.2&subver=1715973397' type='text/css' media='all' /> <style id='classic-theme-styles-inline-css' type='text/css'> /*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} </style> <style id='global-styles-inline-css' type='text/css'> body{--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--color--strong-blue: #042265;--wp--preset--color--pink: #FA54F1;--wp--preset--color--very-light-gray: #F0F5FD;--wp--preset--color--very-dark-gray: #444;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 12px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 20px;--wp--preset--font-size--x-large: 42px;--wp--preset--font-size--normal: 16px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);}:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}body .is-layout-flex{flex-wrap: wrap;align-items: center;}body .is-layout-flex > *{margin: 0;}body .is-layout-grid{display: grid;}body .is-layout-grid > *{margin: 0;}:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;} .wp-block-navigation a:where(:not(.wp-element-button)){color: inherit;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} .wp-block-pullquote{font-size: 1.5em;line-height: 1.6;} </style> <link rel='stylesheet' id='gutenbergbase-style-css' href='https://biobot.io/wp-content/themes/biobot/style.css?ver=6.5.5&subver=1715973397' type='text/css' media='all' /> <link rel='stylesheet' id='font-awesome-css' href='https://biobot.io/wp-content/plugins/popup-anything-on-click/assets/css/font-awesome.min.css?ver=2.8.1&subver=1715973397' type='text/css' media='all' /> <link rel='stylesheet' id='popupaoc-public-style-css' href='https://biobot.io/wp-content/plugins/popup-anything-on-click/assets/css/popupaoc-public.css?ver=2.8.1&subver=1715973397' type='text/css' media='all' /> <script type="text/javascript" src="https://biobot.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1" id="jquery-core-js"></script> <script type="text/javascript" src="https://biobot.io/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1" id="jquery-migrate-js"></script> <link rel="https://api.w.org/" href="https://biobot.io/wp-json/" /><link rel="alternate" type="application/json" href="https://biobot.io/wp-json/wp/v2/risk_reports/4575" /><link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://biobot.io/xmlrpc.php?rsd" /> <link rel='shortlink' href='https://biobot.io/?p=4575' /> <link rel="alternate" type="application/json+oembed" href="https://biobot.io/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fbiobot.io%2Frisk-reports%2Fcovid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025%2F" /> <link rel="alternate" type="text/xml+oembed" href="https://biobot.io/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fbiobot.io%2Frisk-reports%2Fcovid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025%2F&format=xml" /> <script>!function () {var reb2b = window.reb2b = window.reb2b || [];if (reb2b.invoked) return;reb2b.invoked = true;reb2b.methods = ["identify", "collect"];reb2b.factory = function (method) {return function () {var args = Array.prototype.slice.call(arguments);args.unshift(method);reb2b.push(args);return reb2b;};};for (var i = 0; i < reb2b.methods.length; i++) {var key = reb2b.methods[i];reb2b[key] = reb2b.factory(key);}reb2b.load = function (key) {var script = document.createElement("script");script.type = "text/javascript";script.async = true;script.src = "https://s3-us-west-2.amazonaws.com/b2bjsstore/b/" + key + "/reb2b.js.gz";var first = document.getElementsByTagName("script")[0];first.parentNode.insertBefore(script, first);};reb2b.SNIPPET_VERSION = "1.0.1";reb2b.load("LNKLDHM28LOJ");}();</script>  <script type="text/javascript" class="hsq-set-content-id" data-content-id="blog-post"> var _hsq = _hsq || []; _hsq.push(["setContentType", "blog-post"]); </script>  <link rel="icon" href="https://biobot.io/wp-content/uploads/2021/08/cropped-favicon-1-32x32.png" sizes="32x32" /> <link rel="icon" href="https://biobot.io/wp-content/uploads/2021/08/cropped-favicon-1-192x192.png" sizes="192x192" /> <link rel="apple-touch-icon" href="https://biobot.io/wp-content/uploads/2021/08/cropped-favicon-1-180x180.png" /> <meta name="msapplication-TileImage" content="https://biobot.io/wp-content/uploads/2021/08/cropped-favicon-1-270x270.png" />  <script async src="https://www.googletagmanager.com/gtag/js?id=UA-124209075-1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag() { dataLayer.push(arguments); } gtag('js', new Date()); gtag('config', 'UA-124209075-1'); </script> </head> <body class="risk_reports-template-default single single-risk_reports postid-4575 wp-embed-responsive page-covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025">  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-MG7FFTZ" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <div id="page" class="site"> <header id="masthead" class="site-header"> <nav class="navbar top-banner navbar-expand-lg navbar-light sticky-nav2"> <div class="container"> <a class="navbar-brand align-items-center d-flex" href="https://biobot.io"> <img id="logo-dark" src="https://biobot.io/wp-content/themes/biobot/assets/img/logo.svg" alt="Biobot Analytics Official Logo" class="d-lg-inline-block align-text-top d-none" style="margin-right: 10px;"> <img id="iso-dark" src="https://biobot.io/wp-content/themes/biobot/assets/img/iso.svg" alt="Biobot Analytics Official Logo" class="d-inline-block align-text-top d-lg-none" style="margin-right: 10px;"> </a> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span id="icon-toggler" class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarMenu" style="justify-content: center;"> <div class="navbar-nav align-items-center" style="width: 100%; justify-content: center;"> <div class="d-flex align-items-center flex-column flex-lg-row"> <div class="menu-top-navbar-container"><ul id="menu-top-navbar" class="menu"><li id="menu-item-4210" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-4210"><a href="#">Insights</a> <ul class="sub-menu"> <li id="menu-item-4209" class="covid-19 menu-item menu-item-type-post_type menu-item-object-page menu-item-4209"><a href="https://biobot.io/data/">Our Data</a></li> <li id="menu-item-4191" class="risk-report-icon menu-item menu-item-type-post_type menu-item-object-page menu-item-4191"><a href="https://biobot.io/latest-report/">Respiratory Reports</a></li> </ul> </li> <li id="menu-item-1315" class="company menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-1315"><a href="#">About</a> <ul class="sub-menu"> <li id="menu-item-3046" class="about-biobot menu-item menu-item-type-post_type menu-item-object-page menu-item-3046"><a href="https://biobot.io/about/">Company</a></li> <li id="menu-item-3464" class="biobot-ethics menu-item menu-item-type-post_type menu-item-object-page menu-item-3464"><a href="https://biobot.io/code-of-conduct/">Code of Conduct</a></li> <li id="menu-item-834" class="blog menu-item menu-item-type-post_type menu-item-object-page menu-item-834"><a href="https://biobot.io/blog/">Blog</a></li> <li id="menu-item-845" class="science menu-item menu-item-type-post_type menu-item-object-page menu-item-845"><a href="https://biobot.io/science/">Resources</a></li> <li id="menu-item-2273" class="media menu-item menu-item-type-post_type menu-item-object-page menu-item-2273"><a href="https://biobot.io/media/">Newsroom</a></li> </ul> </li> </ul></div> </div> </div> <div class="search-area-nav"> <img src="https://biobot.io/wp-content/themes/biobot/assets/img/icon-search.svg" alt="Search"> <div class="search-input search-area"> <form role="search" method="get" class="search-form" action="https://biobot.io/"> <label> <span class="screen-reader-text">Search for:</span> <input type="search" class="search-field" placeholder="Search …" value="" name="s" /> </label> <input type="submit" class="search-submit" value="Search" /> </form> </div> </div> <a href="https://biobot.io/get-started" title="Start with Biobot" class="btn btn-success btn-sm d-none d-lg-block">Get a Demo</a> </div> </div> </nav> </header> <main id="primary" class="site-main"> <div id="page-post" class="single-risk-report"> <section class="hero hero-single-risk-report"> <video class="" autoplay muted loop playsinline src="https://biobot.io/wp-content/themes/biobot/assets/img/hero-bg.mp4" data-object-fit="cover"></video> <img src="https://biobot.io/wp-content/themes/biobot/assets/img/frame.svg" alt="Frame"> <div class="container" style="position: relative;"> <div class="row justify-content-center"> <div class="col-12"> <h2 class="hero-title">Respiratory Virus Risk Reports</h2> <p>Comprehensive Insights for COVID-19, Influenza, and RSV</p> </div> </div> </div> </section> <section id="post" class="post-risk-report">  <div class="intro-post-area"> <div class="container"> <div class="row"> <div class="col-12"> <div class="body-report"> <h2>COVID-19, Influenza, and RSV Wastewater Monitoring in the U.S. | Week of March 22, 2025</h2> <p> </p> <p>Throughout the respiratory season, we analyze wastewater for the presence of respiratory syncytial virus (RSV) and influenza virus (types A and B). Together with COVID-19, these three pathogens are outsized contributors to our seasonal respiratory illness burden. In this data series, we’ll guide you through the wealth of data we’ve gathered from our Biobot Network of national sampling sites, aiming to shed light on emerging trends in respiratory virus activity and community viral load. Our goal is to equip you with information to make informed decisions.</p> <p><img loading="lazy" decoding="async" class="alignnone wp-image-4582 size-full" src="https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328.png" alt="" width="1362" height="1362" srcset="https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328.png 1362w, https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328-300x300.png 300w, https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328-1024x1024.png 1024w, https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328-150x150.png 150w, https://biobot.io/wp-content/uploads/2025/03/regional_4_plot_0328-768x768.png 768w" sizes="(max-width: 1362px) 100vw, 1362px" /></p> <p style="text-align: left;"><em><span style="font-weight: 400;">Data Note: Samples are collected from participating locations, and processed by our lab team on a rolling basis. Each point on the figure represents the weekly average concentration, from Sunday – Saturday (corresponding to the MMWR week), aligned to that week’s Saturday.<br /> </span></em></p> <div id="tango-capture-box" style="--tango-capture-box-background-color: transparent; --tango-capture-box-color: #FF7442;"></div> </div> </div> </div> </div> </div>  <div class="main-post"> <div class="container"> <div class="row"> <div class="col-12 col-md-4"> <div class="aside-content"> <div class="contributors"> <h6>Contributors</h6> <div class="contributor-single"> <div class="profile"> <img src="https://biobot.io/wp-content/uploads/2023/11/headshot_md-1.png"/> </div> <div class="contributor-data"> <h5>Marisa Donnelly, PhD</h5> <p>Public Health Partnerships Epidemiologist</p> </div> </div> </div> <hr> <div class="previous-risk"> <h6>Previous Risk Reports</h6> <form class="risk-reports" method="get"> <select name="report_id" id="date_select" onchange="this.form.submit()"> <option value="" disabled selected>Select a report</option> <option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-15-2025/">March 21, 2025</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-8-2025/">March 14, 2025</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-february-22-2025/">March 3, 2025</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-february-1-2025/">February 6, 2025</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-december-30-2024/">January 6, 2025</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-december-23-2024/">December 27, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-december-16-2024/">December 18, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-november-23-2024/">December 2, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-november-16-2024/">November 21, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-november-9-2024-2/">November 14, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-november-2-2024/">November 7, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-october-26-2024/">November 1, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-october-19-2024/">October 25, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-october-12-2024/">October 17, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-october-7-2024/">October 10, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-september-30-2024/">October 4, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-september-23-2024/">September 25, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-september-16-2024/">September 19, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-august-12-2024/">August 14, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-august-5-2024/">August 7, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-july-29-2024/">July 31, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-july-22-2024-2/">July 24, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-july-15-2024/">July 18, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-july-8-2024/">July 10, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-july-1-2024/">July 3, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-june-24-2024/">June 26, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-june-17-2024/">June 20, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-june-10-2024/">June 13, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-june-3-2024/">June 7, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-may-27-2024/">May 29, 2024</option><option value="https://biobot.io/risk-reports/covid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-may-20-2024/">May 22, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-may-13-2024/">May 15, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-may-6-2024/">May 9, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-april-29-2024/">May 2, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-april-22-2024/">April 24, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-april-15-2024/">April 17, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-april-8-2024/">April 10, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-25-2024/">March 27, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-18-2024/">March 20, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-11-2024/">March 14, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-4-2024/">March 6, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-february-26-2024/">February 28, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-february-19-2024/">February 21, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-february-12-2024/">February 14, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-february-5-2024/">February 6, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-january-29-2024/">January 30, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-january-22-2024/">January 24, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-january-15-2024/">January 16, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-january-8-2024/">January 9, 2024</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-december-25-2023/">December 26, 2023</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-december-18-2023/">December 19, 2023</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-december-11-2023/">December 12, 2023</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-december-4-2023/">December 5, 2023</option><option value="https://biobot.io/risk-reports/influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-november-27-2023/">December 1, 2023</option><option value="https://biobot.io/risk-reports/respiratory-risk-report-week-of-11-20-23/">November 20, 2023</option> </select> </form> <script> document.getElementById('date_select').onchange = function() { window.location.href = this.value; }; const reportOptions = document.getElementById('date_select'); const previousRiskDiv = document.querySelector('.previous-risk'); if (reportOptions.options.length <= 1) { previousRiskDiv.style.display = 'none'; } </script> </div> <div class="newsletter"> <h6>Subscribe to our newsletter</h6> <div class="newsletter-input"> <script charset="utf-8" type="text/javascript" src="//js.hsforms.net/forms/v2.js"></script> <script> hbspt.forms.create({ region: "na1", portalId: "9481491", formId: "25a86a30-751c-48c2-9b6e-70be1d288a35" }); </script> </div> <p class="disclaimer"> By subscribing you agree to with our <a href="/privacy-policy">Privacy Policy</a>. </p> </div> <hr> <div class="share-area"> <h6>Share this post</h6> <div class="social-media dark"> <div class="icon copy"><span>Copied!</span><a href="" rel="noopener nofollow"><img src="https://biobot.io/wp-content/themes/biobot/assets/img/pages/post/copy-button-dark.svg" alt="Copy" class="img-fluid"></a></div> <div class="icon"><a href="https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fbiobot.io%2Frisk-reports%2Fcovid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025%2F" target="_blank" rel="noopener nofollow"><img src="https://biobot.io/wp-content/themes/biobot/assets/img/pages/post/facebook-dark.svg" alt="Facebook" class="img-fluid"></a></div> <div class="icon"><a href="https://twitter.com/intent/tweet?text=COVID-19,%20Influenza,%20and%20RSV%20Wastewater%20Monitoring%20in%20the%20U.S.%20|%20Week%20of%20March%2022,%202025&url=https%3A%2F%2Fbiobot.io%2Frisk-reports%2Fcovid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025%2F&via=biobotanalytics" target="_blank" rel="noopener nofollow"><img src="https://biobot.io/wp-content/themes/biobot/assets/img/pages/post/twitter-dark.svg" alt="Twitter" class="img-fluid"></a></div> <div class="icon"><a href="https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fbiobot.io%2Frisk-reports%2Fcovid-19-influenza-and-rsv-wastewater-monitoring-in-the-u-s-week-of-march-22-2025%2F&title=COVID-19,%20Influenza,%20and%20RSV%20Wastewater%20Monitoring%20in%20the%20U.S.%20|%20Week%20of%20March%2022,%202025" target="_blank" rel="noopener nofollow"><img src="https://biobot.io/wp-content/themes/biobot/assets/img/pages/post/linkedin-dark.svg" alt="Instagram" class="img-fluid"></a></div> </div> </div> </div> </div> <div class="col-12 col-md-8"> <div class="body-report"> <div style="height:25px" aria-hidden="true" class="wp-block-spacer"></div> <h3 class="wp-block-heading">Summary: Week of 3/22/25</h3> <p><a href="https://biobot.io/biobot-network/">Biobot’s national wastewater network</a> shows that COVID-19, influenza A, and RSV are decreasing, while influenza B is increasing in week 12 (through March 22, 2025). National hospitalizations for influenza remain the highest compared to the other respiratory viruses but continue to decrease, currently at 3.6 per 100,000 people in week 11 (through March 15, 2025). National hospitalizations for COVID-19 and RSV decreased in week 11, currently at 2.0 and 1.6 per 100,000 people, respectively.</p> <p><strong>The Bottom Line: </strong>Despite decreases, flu activity remains elevated — we can expect a couple of more weeks of transmission. It’s good to remember these recommendations to stay healthy: stay current with vaccinations, consider wearing a mask in crowded areas, and if you feel unwell, minimize contact with others.</p> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h3 class="wp-block-heading">National Outlook</h3> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h4 class="wp-block-heading"><strong>COVID-19</strong></h4> <p>National SARS-CoV-2 concentrations are decreasing.</p> <figure class="wp-block-image size-large"><img fetchpriority="high" decoding="async" width="1024" height="576" src="https://biobot.io/wp-content/uploads/2025/03/National-SARS-CoV-2-Wastewater-Concentrations_0328-1024x576.png" alt="" class="wp-image-4577" srcset="https://biobot.io/wp-content/uploads/2025/03/National-SARS-CoV-2-Wastewater-Concentrations_0328-1024x576.png 1024w, https://biobot.io/wp-content/uploads/2025/03/National-SARS-CoV-2-Wastewater-Concentrations_0328-300x169.png 300w, https://biobot.io/wp-content/uploads/2025/03/National-SARS-CoV-2-Wastewater-Concentrations_0328-768x432.png 768w, https://biobot.io/wp-content/uploads/2025/03/National-SARS-CoV-2-Wastewater-Concentrations_0328-1600x900.png 1600w, https://biobot.io/wp-content/uploads/2025/03/National-SARS-CoV-2-Wastewater-Concentrations_0328-1536x864.png 1536w, https://biobot.io/wp-content/uploads/2025/03/National-SARS-CoV-2-Wastewater-Concentrations_0328.png 1920w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h4 class="wp-block-heading"><strong>Influenza</strong></h4> <p>National influenza A concentrations are decreasing while influenza B concentrations are increasing.</p> <figure class="wp-block-image size-large"><img decoding="async" width="1024" height="576" src="https://biobot.io/wp-content/uploads/2025/03/National-Influenza-Wastewater-Concentrations_0328-1024x576.png" alt="" class="wp-image-4576" srcset="https://biobot.io/wp-content/uploads/2025/03/National-Influenza-Wastewater-Concentrations_0328-1024x576.png 1024w, https://biobot.io/wp-content/uploads/2025/03/National-Influenza-Wastewater-Concentrations_0328-300x169.png 300w, https://biobot.io/wp-content/uploads/2025/03/National-Influenza-Wastewater-Concentrations_0328-768x432.png 768w, https://biobot.io/wp-content/uploads/2025/03/National-Influenza-Wastewater-Concentrations_0328-1600x900.png 1600w, https://biobot.io/wp-content/uploads/2025/03/National-Influenza-Wastewater-Concentrations_0328-1536x864.png 1536w, https://biobot.io/wp-content/uploads/2025/03/National-Influenza-Wastewater-Concentrations_0328.png 1920w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h4 class="wp-block-heading"><strong>RSV</strong></h4> <p>National RSV concentrations are decreasing.</p> <figure class="wp-block-image size-large"><img decoding="async" width="1024" height="1024" src="https://biobot.io/wp-content/uploads/2025/03/Natl_RSV_0328-1024x1024.png" alt="" class="wp-image-4579" srcset="https://biobot.io/wp-content/uploads/2025/03/Natl_RSV_0328-1024x1024.png 1024w, https://biobot.io/wp-content/uploads/2025/03/Natl_RSV_0328-300x300.png 300w, https://biobot.io/wp-content/uploads/2025/03/Natl_RSV_0328-150x150.png 150w, https://biobot.io/wp-content/uploads/2025/03/Natl_RSV_0328-768x768.png 768w, https://biobot.io/wp-content/uploads/2025/03/Natl_RSV_0328.png 1080w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h2 class="wp-block-heading">Regional </h2> <h4 class="wp-block-heading"><strong>The South</strong></h4> <p><strong>COVID-19:</strong> SARS-CoV-2 concentrations are decreasing in the South.</p> <p><strong>Influenza:</strong> Influenza A concentrations are decreasing in the South, while influenza B is increasing.</p> <p><strong>RSV:</strong> RSV concentrations are holding steady in the South.</p> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h4 class="wp-block-heading"><strong>The Midwest</strong></h4> <p><strong>COVID-19:</strong> SARS-CoV-2 concentrations are decreasing in the Midwest.</p> <p><strong>Influenza:</strong> Influenza A concentrations are decreasing in the Midwest, while influenza B is holding steady. </p> <p><strong>RSV:</strong> RSV concentrations are decreasing in the Midwest.</p> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h4 class="wp-block-heading"><strong>The Northeast</strong></h4> <p><strong>COVID-19:</strong> SARS-CoV-2 concentrations are decreasing in the Northeast.</p> <p><strong>Influenza:</strong> Influenza A concentrations are decreasing in the Northeast, while influenza B is increasing.</p> <p><strong>RSV:</strong> RSV concentrations are decreasing in the Northeast.</p> <div style="height:50px" aria-hidden="true" class="wp-block-spacer"></div> <h4 class="wp-block-heading"><strong>The West</strong></h4> <p><strong>COVID-19:</strong> SARS-CoV-2 concentrations are decreasing in the West.</p> <p><strong>Influenza:</strong> Influenza A concentrations are decreasing in the West, while influenza B is increasing.</p> <p><strong>RSV:</strong> RSV concentrations are decreasing in the West.</p> <figure class="wp-block-image size-large"><img decoding="async" width="1024" height="1024" src="https://biobot.io/wp-content/uploads/2025/03/Regional_covid_0328-1024x1024.png" alt="" class="wp-image-4581" srcset="https://biobot.io/wp-content/uploads/2025/03/Regional_covid_0328-1024x1024.png 1024w, https://biobot.io/wp-content/uploads/2025/03/Regional_covid_0328-300x300.png 300w, https://biobot.io/wp-content/uploads/2025/03/Regional_covid_0328-150x150.png 150w, https://biobot.io/wp-content/uploads/2025/03/Regional_covid_0328-768x768.png 768w, https://biobot.io/wp-content/uploads/2025/03/Regional_covid_0328.png 1080w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure> <figure class="wp-block-image size-large"><img decoding="async" width="1024" height="576" src="https://biobot.io/wp-content/uploads/2025/03/Regional-Influenza-Wastewater-Concentrations_0328-1024x576.png" alt="" class="wp-image-4578" srcset="https://biobot.io/wp-content/uploads/2025/03/Regional-Influenza-Wastewater-Concentrations_0328-1024x576.png 1024w, https://biobot.io/wp-content/uploads/2025/03/Regional-Influenza-Wastewater-Concentrations_0328-300x169.png 300w, https://biobot.io/wp-content/uploads/2025/03/Regional-Influenza-Wastewater-Concentrations_0328-768x432.png 768w, https://biobot.io/wp-content/uploads/2025/03/Regional-Influenza-Wastewater-Concentrations_0328-1600x900.png 1600w, https://biobot.io/wp-content/uploads/2025/03/Regional-Influenza-Wastewater-Concentrations_0328-1536x864.png 1536w, https://biobot.io/wp-content/uploads/2025/03/Regional-Influenza-Wastewater-Concentrations_0328.png 1920w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure> <figure class="wp-block-image size-large"><img decoding="async" width="1024" height="1024" src="https://biobot.io/wp-content/uploads/2025/03/Regional_RSV_0328-1024x1024.png" alt="" class="wp-image-4580" srcset="https://biobot.io/wp-content/uploads/2025/03/Regional_RSV_0328-1024x1024.png 1024w, https://biobot.io/wp-content/uploads/2025/03/Regional_RSV_0328-300x300.png 300w, https://biobot.io/wp-content/uploads/2025/03/Regional_RSV_0328-150x150.png 150w, https://biobot.io/wp-content/uploads/2025/03/Regional_RSV_0328-768x768.png 768w, https://biobot.io/wp-content/uploads/2025/03/Regional_RSV_0328.png 1080w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure> <hr class="wp-block-separator has-alpha-channel-opacity"/> <pre class="wp-block-verse"><strong>Footnotes: </strong></pre> <pre class="wp-block-verse">We continue to monitor the evolving H5N1 influenza virus situation, and can now test samples specifically for H5 (including H5N1) — please reach out to hello@biobot.io if interested. A quick reminder that Biobot’s influenza A assay described in this report includes the H5N1 influenza subtype, which is an influenza A virus, but does not distinguish between the different subtypes of influenza A (e.g. H5N1 vs H1N1). We will share any important updates as we have them via <a href="https://bsky.app/profile/biobotanalytics.bsky.social">Bluesky</a> and in the risk reports.<br><br>Wastewater data from Biobot Analytics for RSV, influenza, and SARS-CoV-2 are through March 22, 2025 (MMWR week 12). Clinical data for RSV, influenza, and COVID-19 are from the Centers for Disease Control and Prevention. Updates to clinical data are through March 15, 2025 (MMWR week 11). <br></pre> </div> </div> </div> </div> </div> </section> <section id="related-posts" class="is-reports"> <div class="container"> <div class="row justify-content-center"> <div class="col-12"> <div class="top-area"> <h2>Discover the Power of Wastewater</h2> <h4>See previous updates and blog posts below.</h4> </div> </div> <div class="col-12 col-sm-7 col-md-4 related-col"> <div class="related-post">  <div class="content-post"> <div class="title-wrapper date-wrapper"> <h6 class="date">July 31st, 2024</h6> <a class="" href="https://biobot.io/flu-covid-19-and-rsv-in-the-u-s-insights-from-the-latest-surveillance-season/"><h6 class="title-h">Flu, COVID-19, and RSV in the U.S.: Insights from the Latest Surveillance Season</h6></a> <div class="post-content"> <p>Welcome to 2023-2024 season's respiratory surveillance recap, where we’ll share insights from the...</p> </div> </div> <div class="bottom-area"> <div class="cta-link"> <a class="read-link" href="https://biobot.io/flu-covid-19-and-rsv-in-the-u-s-insights-from-the-latest-surveillance-season/">Read</a> </div> </div> </div> <div class="top-post"> <img src="https://biobot.io/wp-content/uploads/2024/07/National-COVID-Wastewater-and-Hospitalizations.png" alt="" class="img-fluid"> </div> </div> </div> <div class="col-12 col-sm-7 col-md-4 related-col"> <div class="related-post">  <div class="content-post"> <div class="title-wrapper date-wrapper"> <h6 class="date">May 17th, 2024</h6> <a class="" href="https://biobot.io/from-raw-data-to-actionable-insights-biobots-evolution-of-public-data-sharing/"><h6 class="title-h">From Raw Data to Actionable Insights: Biobot’s Evolution of Public Data Sharing</h6></a> <div class="post-content"> <p>Blog update 5/30/24: We want to thank the public for all the love and support of this work over...</p> </div> </div> <div class="bottom-area"> <div class="cta-link"> <a class="read-link" href="https://biobot.io/from-raw-data-to-actionable-insights-biobots-evolution-of-public-data-sharing/">Read</a> </div> </div> </div> <div class="top-post"> <img src="https://biobot.io/wp-content/uploads/2024/05/BIOBOT_DASHBOARD_PHOTOS_LAPTOP_01.png" alt="" class="img-fluid"> </div> </div> </div> <div class="col-12 col-sm-7 col-md-4 related-col"> <div class="related-post">  <div class="content-post"> <div class="title-wrapper date-wrapper"> <h6 class="date">May 7th, 2024</h6> <a class="" href="https://biobot.io/beneath-the-surface-the-innovative-role-of-wastewater-data-in-the-fight-against-the-opioid-epidemic/"><h6 class="title-h">Beneath the Surface: The Innovative Role of Wastewater Data in the Fight Against the Opioid Epidemic</h6></a> <div class="post-content"> <p>In recent years, public health has faced unprecedented challenges due to the rapidly evolving...</p> </div> </div> <div class="bottom-area"> <div class="cta-link"> <a class="read-link" href="https://biobot.io/beneath-the-surface-the-innovative-role-of-wastewater-data-in-the-fight-against-the-opioid-epidemic/">Read</a> </div> </div> </div> <div class="top-post"> <img src="https://biobot.io/wp-content/uploads/2024/05/iStock-1917061702-scaled.jpg" alt="" class="img-fluid"> </div> </div> </div> </div> </div> </section> </div> </main> <footer id="footer" class="with-bg"> <div class="container"> <div class="row justify-content-center align-items-center top-row"> <div class="col-6 col-sm-2"> <a class="email left" href="mailto:hello@biobot.io" title="Contact Email">hello@biobot.io</a> </div> <div class="col-12 col-sm-1 text-center"> <img src="https://biobot.io/wp-content/themes/biobot/assets/img/iso-white.svg" alt="Biobot Analytics Official Logo" title="Biobot Analytics"> </div> <div class="col-6 col-sm-2"> <a class="email right" href="mailto:press@biobot.io" title="Press Email">press@biobot.io</a> </div> </div> <hr> <div class="row"> <div class="col-6 col-sm-4 col-md-4 col-lg-3 quick-links"> <p class="title">About</p> <div class="menu-company-container"><ul id="menu-company" class="menu"><li id="menu-item-3047" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-3047"><a href="https://biobot.io/about/">Company</a></li> <li id="menu-item-3465" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-3465"><a href="https://biobot.io/code-of-conduct/">Code of Conduct</a></li> <li id="menu-item-4166" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-4166"><a href="https://biobot.io/blog/">Blog</a></li> <li id="menu-item-4167" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-4167"><a href="https://biobot.io/science/">Resources</a></li> <li id="menu-item-2275" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-2275"><a href="https://biobot.io/media/">Newsroom</a></li> <li id="menu-item-3591" class="accessibility-plan menu-item menu-item-type-custom menu-item-object-custom menu-item-3591"><a target="_blank" rel="noopener" href="/wp-content/uploads/2023/08/Biobot-Accessibility-Plan-Aug-2023.pdf">Accessibility Plan</a></li> </ul></div> </div> <div class="col-6 col-sm-4 col-md-4 col-lg-3 quick-links"> <p class="title">Insights</p> <div class="menu-learn-container"><ul id="menu-learn" class="menu"><li id="menu-item-4205" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-4205"><a href="https://biobot.io/data/">Our Data</a></li> <li id="menu-item-4222" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-4222"><a href="https://biobot.io/latest-report/">Respiratory Reports</a></li> </ul></div> </div> <div class="col-6 col-sm-4 col-md-4 col-lg-3 quick-links empty"> </div> <div class="col-12 col-md-12 col-lg-3 quick-links"> <div class="social-icons"> <p class="title">Social</p> <div class="social-link"> <a class="mr-2" href="https://twitter.com/biobotanalytics/" target="_blank"><img src="https://biobot.io/wp-content/themes/biobot/assets/img/twitter.svg" alt="Twitter icon"></a> <a href="https://www.linkedin.com/company/biobot-analytics/" target="_blank"><img src="https://biobot.io/wp-content/themes/biobot/assets/img/linkedin.svg" alt="LinkedIn icon"></a> </div> </div> </div> </div> </div> <div class="bottom-footer-copyright"> <div class="container"> <div class="row epilogue"> <div class="col-12 col-md-6 text-center text-md-start"> © 2025 Biobot Analytics, Inc. | Cambridge, MA </div> <div class="col text-center text-md-end"> <a href="https://biobot.io/terms-of-service">Terms of Service</a> <a href="https://biobot.io/privacy-policy">Privacy policy</a> </div> </div> </div> </div> </footer> </div> <script type="text/javascript" id="leadin-script-loader-js-js-extra"> /* <![CDATA[ */ var leadin_wordpress = {"userRole":"visitor","pageType":"post","leadinPluginVersion":"10.2.3"}; /* ]]> */ </script> <script type="text/javascript" src="https://js.hs-scripts.com/9481491.js?integration=WordPress&ver=10.2.3" id="leadin-script-loader-js-js"></script> <script type="text/javascript" src="https://biobot.io/wp-content/plugins/popup-anything-on-click/assets/js/popupaoc-public.js?ver=2.8.1" id="popupaoc-public-js-js"></script> <script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-gtEjrD/SeCtmISkJkNUaaKMoLD0//ElJ19smozuHV6z3Iehds+3Ulb9Bn9Plx0x4" crossorigin="anonymous"> </script> <script src="//cdnjs.cloudflare.com/ajax/libs/wow/0.1.12/wow.min.js"></script> <script src="https://biobot.io/wp-content/themes/biobot/js/app.js?ver=1744084821"></script> </body> </html>