H5 Bird Flu: Current Situation | Bird Flu

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Current Situation </a> <a data-post-id="52" href="/bird-flu/about/index.html" tabindex="0"> About </a> <a data-post-id="54" href="/bird-flu/virus-transmission/index.html" tabindex="0"> Bird Flu in Animals and People </a> <a data-post-id="59" href="/bird-flu/prevention/index.html" tabindex="0"> Prevention </a> <a data-post-id="61" href="/bird-flu/caring/index.html" tabindex="0"> Backyard Flock Owners: Protect Yourself from Bird Flu </a> <a data-post-id="882" href="/bird-flu/communication-resources/index.html" tabindex="0"> Avian Influenza Social Media Toolkit </a> <a data-post-id="4122" href="/bird-flu/video-series/index.html" tabindex="0"> H5N1 Informational Videos </a> <a class="view-all" href="/bird-flu/site.html"> View All </a> </div> </div> </header> <main class="container cdc-main" role="main" aria-label="Main Content Area"> <section class="cdc-page-title-bar cdc-page-offset noindex"> <time class="cdc-page-title-bar__item cdc-page-title-bar__item--date" datetime="2024-11-22 05:00:00"> November 22, 2024 </time> <div data-alt-langs class="cdc-page-title-bar__item cdc-page-title-bar__item--languages"> <a class="cdc-page-title-bar__item" href="https://espanol.cdc.gov/enes/bird-flu/situation-summary/index.html">Español</a> </div> </section> <div class="cdc-page-title cdc-page-offset syndicate"> <h1>H5 Bird Flu: Current Situation</h1> </div> <div id="content" class="cdc-page-content cdc-page-offset syndicate container"> <div class="cdc-dfe-body "> <div class="cdc-dfe-body__top "> <div class="dfe-section dfe-section--page-summary summary-list" data-section="cdc_situation_summary_page_summary"> <div class="dfe-section__header"> <h2 class="editor-block--title" id="heading-mjfpoxymrr">What to know</h2> </div> <div class="dfe-section__content"> <ul class="nested-list"> <li class="level-1">H5 bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and U.S. dairy cows with several recent human cases in U.S. dairy and poultry workers.<ul> </ul> </li> <li class="level-1">While the current public health risk is low, CDC is watching the situation carefully and working with states to monitor people with animal exposures.<ul> </ul> </li> <li class="level-1">CDC is using its flu surveillance systems to monitor for H5 bird flu activity in people.<ul> </ul> </li> </ul> <div class="dfe-section__nav hide" id="dfe-section__nav"> <div class="dfe-section__nav__header" id="dfe-section__nav__header"> </div> <div class="dfe-section__nav-links" id="dfe-section__nav-links"> </div> </div> </div> <div class="dfe-section__image" id="page-summary-image"> <figure class="dfe-image dfe-image__large"><div class="image-container calculated-ratio-16-9 aspect-ratio-16-9"><img src="/bird-flu/media/images/2024/07/how-it-is-spreading-1200x627-1.png" alt="H5N1 Bird Flu How is it Spreading?" title="H5N1 Bird Flu How is it Spreading?"></div></figure> </div> <div id="nav-buttons"> </div> </div> </div> <div class="cdc-dfe-body__center "> <div class="dfe-section" data-section="cdc_situation_summary_current"> <a class="onThisPageAnchor" id="cdc_situation_summary_current-current-situation" name="Current%20situation" title="Current situation"></a><h2 class="editor-block--title" id="heading--rjiz-5vfn">Current situation</h2> <div class="dfe-block dfe-callout dfe-callout--calltoaction"><h3>H5 Bird Flu Detections in USA&lrm;</h3> <div class="dfe-callout__body"><div class="callout-desc"><p>• Dairy cattle: <a href="https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza/hpai-detections/livestock" class="ce-selection tp-link-policy" rel="noreferrer" data-domain-ext="gov">Ongoing multi-state outbreak<span class="visually-hidden sr-only" aria-label=" external icon" role="img"></span><span class="cdc-icon-external cdc-link-icon" aria-hidden="true" alt="external icon"></span></a></p><p><br><br>• Wild Birds: <a href="https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/avian/avian-influenza/hpai-2022/2022-hpai-wild-birds" class="tp-link-policy" rel="noreferrer" data-domain-ext="gov">Widespread<span class="visually-hidden sr-only" aria-label=" external icon" role="img"></span><span class="cdc-icon-external cdc-link-icon" aria-hidden="true" alt="external icon"></span></a><br><br>• Poultry Flocks: <a href="https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/avian/avian-influenza/hpai-2022/2022-hpai-commercial-backyard-flocks" class="ce-selection tp-link-policy" rel="noreferrer" data-domain-ext="gov">Sporadic outbreaks<span class="visually-hidden sr-only" aria-label=" external icon" role="img"></span><span class="cdc-icon-external cdc-link-icon" aria-hidden="true" alt="external icon"></span></a><br><br>• Mammals: <a href="https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza/hpai-detections/mammals" class="ce-selection tp-link-policy" rel="noreferrer" data-domain-ext="gov">Sporadic infections<span class="visually-hidden sr-only" aria-label=" external icon" role="img"></span><span class="cdc-icon-external cdc-link-icon" aria-hidden="true" alt="external icon"></span></a><br><br>• Person-to-person spread: None<br><br>• Current public health risk: Low<br></p></div> </div></div> <div class="dfe-block dfe-block--cdcmodule cdc_page_element dfe-block--width-standard"><div class="dfe-block__inner"><div class="cdc-textblock"><div id="human-cases" class="m-0 p-0"></div> </div> </div></div><div class="dfe-block dfe-block--cdcmodule cdc_visualization dfe-block--width-standard"><div class="dfe-block__inner"><div class="mb-3"><div data-language="en" data-host="www.cdc.gov" class="wcms-viz-container" data-config-url="/bird-flu/modules/situation-summary/human-situation.json" data-sid=""></div></div></div></div><h3 id="heading-goktpglifj">Confirmed human case summary during the 2024 outbreak, by state and exposure source</h3> <div class="dfe-block dfe-block--cdcmodule cdc_page_element dfe-block--width-standard"><div class="dfe-block__inner"><div class="cdc-textblock"><h4 class="mt-0">Exposure Source</h4> <div class="table-responsive"> <table class="table table-header-light table-striped table-hover table-hover-light nein-scroll"> <caption class="sr-only d-none">Exposure Source</caption> <thead class="thead-dark"> <tr> <th class="table-header" scope="col"><strong>State</strong></th> <th class="table-header" scope="col"><strong>Cattle</strong></th> <th class="table-header" scope="col"><strong>Poultry</strong></th> <th class="table-header" scope="col"><strong>Unknown</strong></th> <th class="table-header" scope="col"><strong>State Total</strong></th> </tr> </thead> <tbody> <tr> <th scope="row"><strong>California</strong></th> <td>28</td> <td>0</td> <td>1</td> <td>29</td> </tr> <tr> <th scope="row"><strong>Colorado</strong></th> <td>1</td> <td>9</td> <td>0</td> <td>10</td> </tr> <tr> <th scope="row"><strong>Michigan</strong></th> <td>2</td> <td>0</td> <td>0</td> <td>2</td> </tr> <tr> <th scope="row"><strong>Missouri</strong></th> <td>0</td> <td>0</td> <td>1</td> <td>1</td> </tr> <tr> <th scope="row"><strong>Oregon</strong></th> <td>0</td> <td>1</td> <td>0</td> <td>1</td> </tr> <tr> <th scope="row"><strong>Texas</strong></th> <td>1</td> <td>0</td> <td>0</td> <td>1</td> </tr> <tr> <th scope="row"><strong>Washington</strong></th> <td>0</td> <td>11</td> <td>0</td> <td>11</td> </tr> <tr> <th scope="row"><strong>Source Total</strong></th> <td><strong>32</strong></td> <td><strong>21</strong></td> <td><strong>2</strong></td> <td><strong>55</strong></td> </tr> </tbody> </table> </div> </div> </div></div><p>NOTE: One additional case was previously detected in a poultry worker in Colorado in 2022.</p> <p>Additional cases meeting the <a href="https://cdn.ymaws.com/www.cste.org/resource/resmgr/position_statements_files_2023/24-ID-09_Novel_Influenza_A.pdf" target="_blank" class="tp-link-policy" rel="noreferrer" data-domain-ext="com">Council of State and Territorial Epidemiologists (CSTE) probable case definition<span aria-label=" pdf icon" role="img" class="sr-only"></span><span class="cdc-link-icon cdc-link-icon--pdf" aria-hidden="true"></span><span class="visually-hidden sr-only" aria-label=" external icon" role="img"></span><span class="cdc-icon-external cdc-link-icon" aria-hidden="true" alt="external icon"></span></a> have been reported by states: 1 case with dairy cow exposure (CA), 3 cases with poultry exposure (WA). Confirmatory testing at CDC for these cases was negative.</p> <p><em>This table </em><em>is typically</em><em> updated by </em><em>5 PM EST </em><em>on Mondays (for cases confirmed by CDC on Friday, Saturday, or Sunday), Wednesdays (for cases confirmed by CDC on Monday or Tuesday), and Fridays (for cases confirmed by CDC on Wednesday and Thursday). Affected states may report cases more frequently</em><em>.</em></p> <div class="dfe-block dfe-callout dfe-callout--calltoaction"><h3>H5 Monitoring in People&lrm;</h3> <div class="dfe-callout__body"><div class="callout-desc">CDC influenza (flu) surveillance systems show no indicators of unusual influenza activity in people, including avian influenza A(H5).</div> </div><div class="dfe-callout__button"><a href="/bird-flu/h5-monitoring/index.html" class="button hollow">Monitoring Current Situation</a></div></div> <h3 id="heading-zmldck5r2h">National flu surveillance (since February 25, 2024)</h3> <div class="dfe-block dfe-block--cdcmodule cdc_visualization dfe-block--width-standard"><div class="dfe-block__inner"><div class="mb-3"><div data-language="en" data-host="www.cdc.gov" class="wcms-viz-container" data-config-url="/bird-flu/modules/situation-summary/national-surveillance-v2.json" data-sid=""></div></div></div></div><h3 id="heading-tqct-ox8tq">Targeted H5 surveillance (since March 24, 2024)</h3> <div class="dfe-block dfe-block--cdcmodule cdc_visualization dfe-block--width-standard"><div class="dfe-block__inner"><div class="mb-3"><div data-language="en" data-host="www.cdc.gov" class="wcms-viz-container" data-config-url="/bird-flu/modules/situation-summary/targeted-surv-v3.json" data-sid=""></div></div></div></div><h3 id="heading-ys90fabp2m">Detections in Animals</h3> <ul class="nested-list"> <li class="level-1"><strong>10,604</strong> wild birds detected as of 11/19/2024 | <a href="/bird-flu/situation-summary/data-map-wild-birds.html" class="ce-selection">Full Report</a><ul> </ul> </li> </ul> <ul class="nested-list"> <li class="level-1"><strong>50</strong> jurisdictions with bird flu in wild birds<ul> </ul> </li> </ul> <ul class="nested-list"> <li class="level-1"><strong>109,668,208</strong> poultry affected as of 11/21/2024 | <a href="/bird-flu/situation-summary/data-map-commercial.html" class="ce-selection">Full Report</a><ul> </ul> </li> </ul> <ul class="nested-list"> <li class="level-1"><strong>49</strong> states with outbreaks in poultry<ul> </ul> </li> </ul> <ul class="nested-list"> <li class="level-1"><strong>616</strong><strong> </strong>dairy herds affected as of 11/22/2024 | <a href="https://www.aphis.usda.gov/livestock-poultry-disease/avian/avian-influenza/hpai-detections/hpai-confirmed-cases-livestock" class="ce-selection tp-link-policy" rel="noreferrer" data-domain-ext="gov">Full Report<span class="visually-hidden sr-only" aria-label=" external icon" role="img"></span><span class="cdc-icon-external cdc-link-icon" aria-hidden="true" alt="external icon"></span></a><ul> </ul> </li> </ul> <ul class="nested-list"> <li class="level-1"><strong>15</strong> states with outbreaks in dairy cows<ul> </ul> </li> </ul> <p><em>These data will be updated daily, Monday through Friday, after 4 p.m. to reflect any new data.</em></p> <p><em>Cumulative data on wild birds have been collected since January 20, 2022. Cumulative data on poultry have been collected since February 8, 2022. Cumulative data on humans in the U.S. have been collected since April 28, 2022. Cumulative data on dairy cattle have been collected since March 25, 2024.</em></p> </div> <div class="dfe-section" data-section="cdc_situation_summary_response"> <a class="onThisPageAnchor" id="cdc_situation_summary_response-what-cdc-is-doing" name="What%20CDC%20is%20doing" title="What CDC is doing"></a><h2 class="editor-block--title" id="heading-6quztzmr9g">What CDC is doing</h2> <div class="dfe-block dfe-block--cdcmodule cdc_content_coll dfe-block--width-standard"><div class="dfe-block__inner"><div class="dfe-block dfe-block--cdcmodule cdc_content_coll"><content-collection data-src="/bird-flu/modules/AvianSpotlights.json" data-static="/bird-flu/modules/AvianSpotlights.static.json" data-template="dfe" data-theme="featured" data-hide-form="1" data-hide-pagination="1" data-limit="5" data-limit-content="200"></content-collection></div></div></div> </div> <div class="dfe-section" data-section="cdc_situation_summary_action"> <a class="onThisPageAnchor" id="cdc_situation_summary_action-protective-actions-for-people" name="Protective%20Actions%20for%20People" title="Protective Actions for People"></a><h2 class="editor-block--title" id="heading-r5you38m9i">Protective Actions for People</h2> <ul class="nested-list"> <li class="level-1"><a href="/bird-flu/prevention/index.html" class="">Protective actions around wild birds</a> Avoid direct contact with wild birds and observe them only from a distance, if possible. <a href="/bird-flu/" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/prevention/index.html" class="">What to do if you find a dead bird</a> Avoid contact with wild or domestic birds that appear ill or have died and call to report sick or dead birds. <a href="/bird-flu/prevention/index.html" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/prevention/hpai-interim-recommendations.html" class="">Protective actions around other animals with H5N1 bird flu</a> Avoid unprotected exposure to infected live or dead animals or surfaces contaminated by them. <a href="/bird-flu/prevention/hpai-interim-recommendations.html" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/situation-summary/mammals.html" class="">Protective actions if you work with potentially infected dairy cattle</a> Avoid unprotected direct physical contact or close exposure with cattle and materials potentially infected or confirmed to be infected with HPAI A(H5) virus. <a href="/bird-flu/situation-summary/mammals.html" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/prevention/index.html" class="">Consuming Milk</a> People should not eat or drink raw milk or products made with raw milk. Choosing pasteurized milk is the best way to keep you and your family safe. <a href="/bird-flu/prevention/index.html" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/prevention/index.html" class="">Preparing food</a> It is safe to eat properly handled and cooked poultry in the United States. There are recommendations around products from other animals with H5 virus infections, including cattle and milk. <a href="/bird-flu/prevention/index.html" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/prevention/index.html" class="">Traveling to other countries</a> CDC does not currently recommend any travel restrictions related to bird flu to countries affected by bird flu in birds, other animals or people. <a href="/bird-flu/prevention/index.html" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/prevention/index.html" class="">If you have contact with infected birds or other animals and become sick</a> Learn what to do if you have contact with infected birds or other animals and become sick. <a href="/bird-flu/prevention/index.html" class="">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/site.html#hcp" class="">Clinicians</a> can visit CDC's avian influenza (bird flu) information for health professionals for the latest guidance. <a href="/bird-flu/site.html#hcp" class="">Learn more</a>.<ul> </ul> </li> <li class="level-1"><a href="/bird-flu/site.html#php">Public health professionals and laboratorians</a> can visit CDC's avian influenza (bird flu) information for public health partners for the latest guidance. <a href="/bird-flu/site.html#php">Learn more.</a><ul> </ul> </li> <li class="level-1"><a href="/bird-flu/prevention/index.html" class="">Get a seasonal flu vaccine</a> Seasonal flu vaccination will not prevent infection with bird flu viruses, but can reduce the risk of getting sick with human influenza viruses and thus the risk for seasonal and bird flu co-infection. <a href="/bird-flu/prevention/index.html" class="">Learn more.</a><ul> </ul> </li> </ul> </div> </div> <div class="cdc-dfe-body__right page-right-rail"> <aside class="page-right-rail__static noindex" role="complementary"> <div class="on-this-page " data-sid=""> <h2 class="on-this-page__heading"> On This Page </h2> <div class="card-body"> <ul> <li><a href="#cdc_situation_summary_current-current-situation">Current situation</a></li> <li><a href="#cdc_situation_summary_response-what-cdc-is-doing">What CDC is doing</a></li> <li><a href="#cdc_situation_summary_action-protective-actions-for-people">Protective Actions for People</a></li> </ul> </div> </div> </aside> <aside class="page-right-rail__dynamic noindex" role="complementary"> <div data-related-nav></div> </aside> </div> </div> <div data-journey-next></div> <section class="container page-mobile-bar"> <time class="page-mobile-bar__item page-mobile-bar__item--date" datetime="2024-11-22 00:00:00"> November 22, 2024 </time> </section> <div class="page-content-sources noindex"> <div class="page-content-sources__header"> <a data-action="summary" class="collapsed" href="#content-sources" role="button" data-bs-toggle="collapse" aria-expanded="false" aria-controls="content-sources" data-cs-toggle="">Sources</a> <a data-action="print" 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