Why do COVID vaccines cause chronic issues for some? Here’s what researchers say

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background-color:var(--p-main-bg-color); } .header .main-menu .main-menu-dropdown-list.second-submenu { top: 0rem; left: 100%; } .header .main-menu .main-menu-dropdown-list-sidebar { z-index: 100; display:none; min-width: 150px; max-width: 250px; } .item_container{ border-top: var(--p-nav-border-color) 1px solid; border-bottom: var(--p-nav-border-color) 1px solid; } @media (max-width: 1199.98px) { .mega-menu .main-menu > ul > li a { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 6px 5px; cursor: pointer; position: relative; display: block; } } .header .main-menu input[type='checkbox'] + .main-menu-dropdown-list { display: none; } .desktop-nav .header .main-menu li:hover > input[type='checkbox'] + .main-menu-dropdown-list { display: block; } .hover_bottom::after { content: ""; position: absolute; bottom: 0px; left: 50%; transform: translateX(-50%); width: 100%; height: 2px; background-color: #fdd828; transition: all 0.3s ease-in-out; opacity: 0; } .active_link_nav_nested::after{ opacity: 1; color: #fdd828; } .anchor:hover{ color: #fdd828; } .navbar_name{ display:inline-block; width:max-content; color: var(--p-nav-txt-color); } .sub_navbar_name{ display:inline-block; width:max-content; color: var(--p-nav-txt-color); } .desktop-nav .navbar_name .dropdown-item-s:hover{ color:#fdd828; font-weight:600; } .dropdown-item-s .main-menu-dropdown-icon svg path{ stroke:#fdd828; stroke-width: 2px; } .dropdown-item-s:hover .main-menu-dropdown-icon svg path{ stroke:#fdd828; } .navbar_name:hover{ color:#fdd828; font-weight:600; } .navbar_name .main-menu-dropdown-icon svg path{ stroke:#8D8D8D; } .navbar_name:hover .main-menu-dropdown-icon svg path{ stroke:#fdd828; } .header .main-menu .main-menu-dropdown-list .more_10{ max-width:800px; grid-template-columns: repeat(4, 1fr); grid-auto-rows: max-content; } .desktop-nav .header .main-menu .main-menu-dropdown-list .more_10 li{ padding: 2px 0px; margin-right: 3.5rem; } .mobile-nav .new-header .main-menu .main-menu-dropdown-list .more_10 li{ padding: 4px 0px; margin:0px; } .desktop-nav .header .main-menu li:hover > input[type='checkbox'] + .main-menu-dropdown-list.more_10 { display: grid; } .mega-menu .main-menu input[type='checkbox']:checked + .main-menu-dropdown-list-sidebar { display: block; } .desktop-nav .header .main-menu .first-submenu .dropdown-item-s{width:96%;} .header .main-menu .dropdown-item-s{ display: inline-flex; width: 100%; justify-content: space-between; align-items: center; position:relative; } .desktop-nav .header .main-menu .dropdown-item-s{padding: 0px 7px;} .desktop-nav .main-menu{display: flex;align-items:center;position:relative;justify-content: center;} .mobile-nav .header .main-menu .main-menu-dropdown-list{position:static;border:none;} .mobile-nav .header .main-menu .main-menu-dropdown-list li{position:relative;border:none;margin:10px 4px;} .mobile-nav .second-submenu{padding-left: 3rem;} .mobile-nav .header .main-menu .main-menu-dropdown-list { list-style: none; margin: 0; display: flex; flex-direction: column; max-width:100%; width:100%; } .mobile-nav .header .main-menu .main-menu-dropdown-list a{ border-radius:0px; background-color:inherit; } .desktop-nav .header .page-links{display:none;} .mobile-nav .main-menu{padding: } .mobile-nav .new-header .main-menu .main-menu-dropdown a { font-size:16px; font-weight:700; text-transform:uppercase; z-index:12; } .main-menu .main-menu-dropdown li {list-style:none;} .desktop-nav .main-menu .new-menu .dropdown-item-s.first-drop a { font-size:15px; font-weight:700; text-transform:uppercase; } .new-header .main-menu .main-menu-dropdown .first-submenu a { font-size:15px; font-weight:700; } .desktop-nav .new-header .main-menu .main-menu-dropdown .first-submenu .dropdown-item-s > .navbar_name { padding: 10px 30px; } .mobile-nav .new-header .main-menu .main-menu-dropdown .first-submenu a { padding: 10px 2px; text-transform:capitalize; font-size:14px; font-weight:600; } .new-header .main-menu .main-menu-dropdown .first-submenu .second-submenu a { font-size:14px; font-weight:400; padding: 7px 15px 7px 0px; } .mobile-nav .new-header .main-menu .main-menu-dropdown .first-submenu .second-submenu a { padding: 10px 15px 10px 0px; width:fit-content; } .mobile-nav .main-menu .first-submenu a {font-size:15px;font-weight:600;} .mobile-nav .main-menu .first-submenu .dropdown-item-s .main-menu-dropdown-icon {transform: rotate(90deg);} .header .main-menu .second-submenu{padding:revert;} .main-menu .second-submenu li{list-style:disc;} .mobile-nav .main-menu .second-submenu{padding-left: 17px;} .sidebar-multi-level nav{padding:0px 16px;padding-top:2rem;} .sidebar-multi-level .main-menu-dropdown{padding:10px 0px;} .header .main-menu .main-menu-dropdown-list.second-submenu.left{ left: auto; right: 100%; } ul .first-submenu li:hover { color:#fdd828; } .desktop-nav ul .first-submenu li:hover {background-color: #F3F3F5;} ul .first-submenu li a:hover { color:#fdd828; } .desktop-nav .header .main-menu .main-menu-dropdown-list .second-submenu{background:#F3F3F5} .mobile-nav .page-links li{ color:#fdd828; list-style:disc; } .mobile-nav ul.page-links{ padding-left: 2.6rem; } .sidebar-multi-level .navbar_name {border-radius:0px;} .old-nav .desktop-nav .main-menu.not-nested {justify-content:flex-start;padding-left:0px;} .mega-menu .main-menu input[type='checkbox']:checked + .main-menu-dropdown-list-sidebar {display: block;}.mega-menu .main-menu input[type='checkbox']:checked + .main-menu-dropdown-list {display: block;}.mega-menu .main-menu input[type='checkbox']:not(:checked) + .main-menu-dropdown-list-sidebar {display: none;}.mega-menu .main-menu input[type='checkbox'] {display: none;} .menu_bar{ padding:0px; border-bottom: 1px solid; padding-bottom: 10px; } .menu_li{ text-transform:capitalize; font-size: 16px; font-weight: 500; } .side_btn { padding: 8px 8px 8px 23px; text-decoration: none; font-size: 16px; display: inline-block; transition: 0.3s; background-color: transparent; width: fit-content; text-align: start; } .sidebtn{ display: inline-flex; align-items: center; width: 100%; justify-content: space-between; } .dropdown_menu { display: none; font-weight: 400; margin: 0px -15px; padding: 0px 15px; } .sidenav a { padding: 8px 8px 8px 23px; text-decoration: none; font-size: 16px; color: #fff; display: block; transition: 0.3s; } .sidenav .side_btn { padding: 8px 8px 8px 23px; text-decoration: none; font-size: 16px; color: #fff; display: inline-block; transition: 0.3s; background-color: transparent; width: fit-content; text-align: start; } .sidenav a:hover,sidenav a { color: #f1f1f1; } .sidenav .closebtn { position: absolute; top: 0; right: 25px; font-size: 36px; margin-left: 50px; } @media screen and (max-height: 450px) { .sidenav {padding-top: 15px;} .sidenav a {font-size: 18px;} .sidenav button {font-size: 18px;} } .dropdown_list{ border-bottom:1px solid rgba(255,255,255,.15);; margin-top:0px; margin-left:-15px; padding-left:15px !important; } .dropdown_list a{ font-size: 15px; } .submenu-sidebtn a{ padding: 8px 8px 8px 60px; text-decoration: none; font-size: 16px; display: block; transition: 0.3s; } .second-submenu .dropdown_list { border: none; } ul.dropdown_menu.second-submenu a.submenu-anchor{ padding: 8px 0px 8px 80px; } .second-submenu li a { font-size: 14px; } .submenu-sidebtn{ max-width: 340px; display: flex; align-items: center; justify-content: space-between; } .pb-15{ padding-bottom: 15px; } .ptb-10{ padding-top:10px; padding-bottom:10px; } .custom_post_div_border{ border-bottom: 1px solid var(--color-border); padding-bottom: 15px; } .gh-post-page__content p, .gh-post-page__content img:not(.gh-post-page__image), .gh-post-page__content blockquote, .gh-post-page__content figure:not(.gh-post-page__featured-img), .gh-post-page__content .gallery_container, .gh-post-page__content div:not(.ghost-css-exclusion-classes):not(.publive-dynamic-container div, .pdf-anchor div), .gh-post-page__content .publive-dynamic-container, .gh-post-page__content iframe:not(.publive-dynamic-container iframe), .gh-post-page__content table, .gh-post-page__content span{ margin: 0 auto 16px !important; max-width: 767px; padding-left: 10px !important; padding-right: 10px !important; width: 100% !important; } .post-without-sidebar .gh-card-image__caption{ max-width: 767px; margin: 0 auto 16px !important; text-align:center; } .paginate{ padding: 0.7rem 0.75rem; border-right: 1px solid #ddd; font-size: 1rem; } .footer-preview-hr-non-amp { margin:0px;color: inherit; border: 0; border-top: 1px solid; opacity: .25; } .post-card-content-link{ display: flex; gap: 8px; flex-direction: column; } .search-form { padding: 0 15px; width: 100%; border: 1px solid rgba(var(--black-rgb), 0.2); background-color: var(--white); border-radius: 5px; display: flex; align-items: center; justify-content: space-between; } .search-form input { border: none; outline: none; font-size: 14px; color: var(--black,#000); padding: 10px 0; width: calc(100% - 25px); } .search-form button { background-color: transparent; border: none; outline: none; cursor: pointer; padding: 0; margin: 0; } .search-form button svg { width: 22px; height: 22px; } .post-card-content { margin-top: 30px; } .gh-header-container{ overflow: visible !important; } .signin_container .signup-up-option .facebook-login,.signin_container .signup-up-option .google-login { height: 39px !important; } .newsletter-page-default { padding-bottom: 50px 0px 40px 200px !important; } .custom_sidebar .new-header .main-menu{ display: flex; flex-direction: column; } .gh-mobile-menu { z-index: 101 !important; } .child_category_pill{ border: 2px solid #fdd828; padding: 1px 20px; text-align: center; text-decoration: none; display: flex; margin: 9px 6px 20px 6px; cursor: pointer; width: fit-content; border-radius: 24.3232px; height: 26px; white-space: nowrap; font-size: 14px; align-items: center; } .child_category_pill a:hover{ color: #181818; background-color: #fdd828; text-decoration: none; } .div-handle{ display:flex;flex-direction: row;overflow-x: scroll; } .active_cat{background-color: #fdd828;color:#181818;} .active_cat:hover{background-color: none;color:none;} .publive-dynamic-container{ margin-left:auto !important: margin-right: auto !important } .unselectable { -webkit-user-select: none; -webkit-touch-callout: none; -moz-user-select: none; -ms-user-select: none; user-select: none; } .gh-header--bottom{ height: min-content !important; min-height: 35px; } /* PULSE BUBBLES */ @keyframes pulse { from { opacity: 1; transform: scale(1); } to { opacity: .25; transform: scale(.75); } } .spinner-box { width: 300px; display: flex; justify-content: center; align-items: center; background-color: transparent; margin: 15px auto; } .pulse-container { width: 120px; display: flex; justify-content: space-between; align-items: center; margin: 0px auto; } .pulse-bubble { width: 20px; height: 20px; border-radius: 50%; background-color: #d9d9d9; } .pulse-bubble-1 { animation: pulse .4s ease 0s infinite alternate; } .pulse-bubble-2 { animation: pulse .4s ease .2s infinite alternate; } .pulse-bubble-3 { animation: pulse .4s ease .4s infinite alternate; } .mt-15{ margin-top:15px; } .publive-dynamic-container{ text-align: center; display: flex; flex-direction: column; background-color: #F5F5F5; row-gap: 10px; color: #777; font-size: 14px; line-height: 16px; margin: 20px auto; align-items: center; } .publive-dynamic-container .publive-slot-span { margin-bottom: 10px; display: none; } .sidebar-slots { height: 600px; width: 160px; position: sticky; top: 138px; margin: 20px 10px; } .ap_after_article_custom_css{ grid-column: 1 / 2; } .ad_close_btn{ position: absolute; right: 5px; top: 5px; z-index: 9999999; background-color:#c1c1c1; border-radius:5px; padding:1px 6px; } .ad_close_btn img{ width:8px; } .sticky_add{ height: 60px; padding-top: 5px; padding-bottom: 5px; width: 100%; position: fixed; bottom: 0px; z-index: 10000; margin: auto; } .gh-site-logo img{ height: 60px; aspect-ratio: auto; } .gh-post-page--with-sidebar .gh-card-image-wrapper{ margin-bottom: 0px; } @media (max-width: 550px) { .gh-header--type-2 .gh-site-logo img { height: 50px; } } @media (max-width: 500px) { .gh-header--type-2 .gh-site-logo { transform: unset; margin-left: 10px; } } @media (max-width: 1280px) { .left-sidebar-slots{ display: none; } } .post-content{ padding-top:40px; } .d-flex{ display: flex; } .custom_post_class{ width: 100%; } .display-none{ display:none; } @media screen and (min-width: 600px) { .featured-video-embed iframe, .featured-video-embed blockquote {max-height:700px; margin: 0 auto !important; } } @media screen and (max-width: 600px) { .featured-video-embed iframe, .featured-video-embed blockquote {max-width: 100% !important;} } .gh-content .blog-updates li.update .update-heading,.gh-post-page__content .blog-updates li.update .update-heading{ font-size: 24px; font-weight: 600; line-height: normal; word-break: break-word; margin: 0 0 12px 0; } .gh-post-page__content div .update-date-div{ margin:0px !important } .gh-post-page__content div .update-date-div,.gh-content .blog-updates li.update .update-heading, .gh-post-page__content .blog-updates li.update .update-heading{ margin:0px !important; padding:0px !important; } .live-blog-date-title-div{ padding : 0px !important; } .update-pinned{ padding : 18px 14px !important; } .gh-content .blog-updates li.update .update-content, .gh-post-page__content .blog-updates li.update .update-content{ padding: 0px !important; } .gh-content .blog-updates::before,.gh-post-page__content .blog-updates::before { color: #161616 !important; } .next-article-dropdown{ background-color: var(--color-bg-main) !important; color:var(--color-main) !important; } #search_page_input { background: var(--color-border) !important; } #search_page_input input:not([type=submit]), .jeg_search_input { background: var(--color-bg-main) !important; color: var(--color-header-icon) !important; } .gh-post-content-container.cropped{ max-height: 250px; overflow: hidden; position: relative border-bottom: 1px solid #EFEFEF; -webkit-mask-image: linear-gradient(to bottom, black, transparent); mask-image: linear-gradient(black, 70%, transparent); } .read-more-box { z-index: 4; text-align: center; padding: 15px 12px 15px; background: linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 10%, var(--color-bg-main) 60%, var(--color-bg-main) 100%); } .read-more-btn { position: relative; background: #fdd828; border-radius: 6px; color: #181818; min-width: 131px; margin: -6px 0 20px 0; padding: 0px 24px; height: 30px; line-height: 18px; font-size: 12px; font-weight: 700; display: inline-flex; align-items: center; gap: 8px; } .read-more-btn svg { stroke:#181818; } .hide_article_content{ display: none!important; } .custom-bottom-bar{ border-bottom: 1px solid var(--color-border) !important; } .gh-tags-wrapper { align-items: center; } @media (max-width: 550px) { .gh-mobile-menu__top { padding-left: 10px; padding-right: 20px; } } ul.links-div{padding-left: 0rem !important;} </style>   <style> :root{ --ghost-accent-color : #fdd828; font-family: var(--pub-font-family); } .has-cover:not(.home-template) .gh-head{ color: #181818; background-color: var(--ghost-accent-color); } .post-card .post-card-image { aspect-ratio: 16/9; } .gh-content iframe { max-width: -moz-available; /* WebKit-based browsers will ignore this. */ max-width: -webkit-fill-available; /* Mozilla-based browsers will ignore this. */ } .has-cover .gh-burger:after, .has-cover .gh-burger:before { background-color: #181818 !important; } .custom-nav-css{ display: flex; gap: 20px; } /** move this css files to seperate css files and load throguh webpack and other condition */ .gh-content .blog-updates br,.gh-post-page__content .blog-updates br { display: none; } .gh-content .blog-updates ,.gh-post-page__content .blog-updates { padding: 0; margin-top: 8px; } .gh-content .blog-updates::before,.gh-post-page__content .blog-updates::before{ content: "Live Updates"; display: block; font-weight: bold; padding: 5px; border-radius: 5px; background-color: #f6f6f6; margin-bottom: 22px; font-size: 24px; line-height: normal; padding-left: 6px; height: 49px; text-align: start; padding-top: 9px; } .gh-content .blog-updates li.update,.gh-post-page__content .blog-updates li.update { list-style: none !important; border-radius: 4px; border: 1px solid #C1C8CC; padding: 18px 14px } .gh-post-page__content .blog-updates{ max-width: 100% !important; width: 100% !important; } .gh-post-page__content .blog-updates .twitter-tweet iframe{ max-width: 100% !important; } .gh-content .blog-updates li.update .update-date,.gh-post-page__content .blog-updates li.update .update-date{ color: #757575; font-size: 14px; font-style: italic; font-weight: 400; line-height: normal; margin-bottom: 8px; } .gh-content .blog-updates li.update:not(:last-child),.gh-post-page__content .blog-updates li.update:not(:last-child) { margin-bottom: 16px; } .gh-content .blog-updates li.update .update-heading,.gh-post-page__content .blog-updates li.update .update-heading{ font-size: 24px; font-weight: 600; line-height: normal; margin: 0 0 12px 0; } .gh-content .blog-updates li.update .update-content ,.gh-post-page__content .blog-updates li.update .update-content{ font-size: 20px; font-weight: 400; line-height: normal; } .gh-content .blog-updates li.update .update-content ,.gh-post-page__content .blog-updates li.update .update-content { padding: 10px 14px 9px 14px; } .gh-content .blog-updates li.update .update-content p,.gh-post-page__content .blog-updates li.update .update-content p {margin: 0;padding:0px !important;} .sharelink .svg_fill{ width:32px; height:32px; } .blog-update-load-more-button{border: none; display: inline-block; background-color: rgba(51,51,51,.75); color: #fff; margin: 4px 0px; padding: 0px 32px; box-sizing: border-box; height: 48px; border-radius: 24px;} .live-status-logo{ border-radius: 7px; border-radius: 7px; margin-right: 8px; max-width: 65px; padding-top: 5px; } .live-status-logo span{ color: #a0a0a0; } .live-status-logo img{ width: 49.789px; height: 19px; } .live-status-logo-content{ color: #DA0E0E; font-family: var(--pub-font-family); font-size: 12px; font-style: normal; font-weight: 700; line-height: normal; } .live-status-logo-content span{ margin-left:10px; } .live-status-top-pin-comment{ display: flex; flex-direction: row; padding: 17px 27px; align-items: flex-start; background: #E75B5B; margin-right: 10px; color: #fff; } .live-status-top-pin-comment-live-blog{ display: flex; flex-direction: column; padding: 5px; width: 180px; min-width: 180px; align-items: flex-start; background: #E75B5B; } .live-status-top-pin-comment .live-status-content{ -webkit-line-clamp: 3; width: 100%; margin-left:5px; } .live-status-top-pin-comment .live-status-content .update-heading{ -webkit-line-clamp: 1; } .live-status-top-pin-comment .live-status-content .update-content{ margin-top:5px; -webkit-line-clamp: 2; } .live-status-top-pin-comment .live-status-content .update-content p{ margin-bottom: 0rem; } .update-pinned,.update-pinned .update-date { background: #E75B5B; color: #FFF !important; } .live-blog-li-div { padding-top:0px; } .live-blog-date-title-div{ padding:18px 14px; display:flex; justify-content: space-between; align-items: center; } .update-date-div{ display:flex; flex-direction: column; } .live-blog-icon{ height: 13px; justify-content: center; align-items: center; gap: 3.574px; flex-shrink: 0; border-radius: 2.502px; background: #DA0E0E; position: absolute; top: 10px; right: 10px; padding: 11px 4px 10px 4px; z-index: 1; } .live-blog-icon span{ color: #FFF; font-size: 14px; font-style: normal; font-weight: 700; line-height: normal; } .live_blog_icon_update_div{ min-height: 56px; flex-shrink: 0; display:none; align-items: center; padding-left: 25px; border-radius: 8px; background: #0056D6; box-shadow: 0px 4px 24px 0px rgba(0, 0, 0, 0.15); position: sticky; top: var(--live-blog-article-share-top-hieght); z-index: 9002; margin-right: 10px; } .live_blog_icon_update_div span{ padding-left: 15px; margin-top: 5px; color: #FFF; font-size: 16px; font-style: normal; font-weight: 500; line-height: 21px; /* 131.25% */ } /** pagination classes start */ .py-3 { padding-top: 1rem!important; padding-bottom: 1rem!important; } .justify-content-center { justify-content: center!important; } .d-flex { display: flex!important; } .navigation{ display: flex; align-items: center; text-align: center; border-radius: 5px; border: 1px solid #ddd; border-right: none; margin-top:30px; } .page_hov:hover{ background-color: #eceeef; color: #fdd828; } .page_active{ background-color: #eceeef; color: #fdd828; } /** pagination classes end */ /** search classes start */ .jeg_search_form { display: block; opacity: 0; visibility: hidden; position: absolute; top: 63px; right: 300px; text-align: center; width: 325px; background: #fff; border: 1px solid #eee; padding: 0; height: 0; z-index: 12; -webkit-box-shadow: 0 1px 4px rgb(0 0 0 / 9%); box-shadow: 0 1px 4px rgb(0 0 0 / 9%); -webkit-transition: height .1s; -o-transition: height .1s; transition: height .1s; } .jeg_search_form-trans { opacity: 1; visibility: visible; padding: 20px; height: auto; -webkit-transition: padding .2s,height .1s,opacity .15s; -o-transition: padding .2s,height .1s,opacity .15s; transition: padding .2s,height .1s,opacity .15s; background-color: transparent; border: none; } .jeg_search_input { width: 100%; -webkit-box-shadow: inset 0 0 15px 0 rgb(0 0 0 / 8%); box-shadow: inset 0 0 15px 0 rgb(0 0 0 / 8%); } #search_page_input input:not([type=submit]), .jeg_search_input { display: inline-block; background: #fff; color: #000; border: 1px solid var(--p-border-color); border-radius: 0; padding: 7px 14px; height: 40px; outline: 0; font-size: 14px; font-weight: 300; margin: 0; width: 100%; max-width: 100%; -webkit-transition: all .2s ease; transition: .25s ease; border: none; } .jeg_search_button { color: var(--p-link-txt-color); background: 0 0; border: 0; font-size: 14px; outline: 0; cursor: pointer; position: absolute; height: auto; min-height: unset; line-height: normal; top: 0; bottom: 0; right: 20px; padding: 0 10px; transition: none; } /** search classes end */ /** login classes start */ .signin_container { position: relative; display: flex; align-items: center; flex-direction: column; padding: 1rem; padding-top: 0; gap: 1rem; cursor: default; height: 72dvh; margin-top: 3rem; } .signin_container hr { height: 1px; background-color:#ccc; margin: 0; } .signin_container h3 { font-weight: 400; margin: 0; font-weight: 400; font-size: 32px; line-height: 150%; text-align: center; color: var(--p-txt-1-color); } .signin_container .signup-up-options-route { margin: 0; padding: 0; max-width:320px; width:100%; display:flex; gap: 10px; flex-direction: column; align-items: center; } .signin_container .signup-up-option { padding: 0.3rem 1rem; border: 1px solid #D9D9D9; list-style: none; border-radius: 5px; font-weight: 500; font-size: 14px; line-height: 35px; letter-spacing: 0.02em; max-width:320px; width:100%; height:44px; } .signin_container .signup-up-option button{ background-color: transparent; width: 100%; height: 100%; gap: 10px; display: flex; justify-content: center; align-items: center; color: var(--p-txt-1-color); } .signin_container .signup-up-option img{ height: 1.1rem; width: 2rem; } .signin_container .divider { display: flex; align-items: center; text-align: center; width: 100%; margin: 10px 0px; } .signin_container .sign-up-modal-back-link svg { margin-right: 5px; } .signin_container .sign-up-modal-back-link svg path{ stroke-width: 2px; } .signin_container .divider::before, .signin_container .divider::after { content: ''; flex: 1; border-bottom: 1px solid #ccc; margin: 0 10px; height: 2px; } .signin_container .divider-text { font-size: 14px; color: #888; } .signin_container .signup-tnc { font-size: 14px; font-weight: 400; text-align: center; } .signin_container .signup-tnc a { color: #fdd828; } .custom-google-button { display: none; } .signed-in-container { text-align: center; height: 70dvh; padding: 1rem } .signed-in-container h4{ color: var(--p-txt-color); margin-bottom: 2rem; } .signed-in-container a{ padding: 0.3rem 1rem; background-color: #fdd828 ; color: #fff; } .sign-in-header{ color: #000; font-size: 16px; font-style: normal; font-weight: 500; line-height: 20.8px; /* 130% */ letter-spacing: -0.26px; text-align: center; } .sign-in-sub-text{ color: #888; text-align: center; font-size: 16px; font-style: normal; font-weight: 400; line-height: 21px; letter-spacing: -0.26px; max-width:320px; width:100%; } .signin_main_container{ margin: 0px auto; border-radius: 10px; background: var(--p-dark-bg-border-shadow); box-shadow: 0px 1px 30px 0px rgba(0, 0, 0, 0.06); margin-top: 5%; padding-top: 30px; height: 100%; max-width: 550px; } .signin_main_container input{ border-radius: 4px; border: 1px solid #ccc; background: #FFF; max-width:320px; width:100%; padding: 12px 16px; align-items: center; gap: 16px; } .signin_main_container .fw-div{ display: flex; max-width:320px; width:100%; } .signin_main_container button{ display: flex; max-width:320px; width:100%; height: 45px; justify-content: center; align-items: center; gap: 10px; flex-shrink: 0; border-radius: 4px; background: #fdd828; } .signin_main_container a{ margin-left: auto; } .signin_main_container button span{ border-radius: 4px; background: #fdd828; display: flex; max-width:320px; width:100%; height: 45px; padding: 15px 30.5px; justify-content: center; align-items: center; gap: 10px; flex-shrink: 0; color: #181818; } .sign-in-p-tag-2{ font-size: 16px; font-style: normal; font-weight: 400; line-height: normal; text-align: center; } .sign-in-bottom-text{ color: #888; text-align: center; font-size: 12px; font-style: normal; font-weight: 400; line-height: 21px; letter-spacing: -0.26px; } .login-redirect{ display: flex; max-width:320px; width:100%; height: 45px; padding: 15px 30.5px; justify-content: center; align-items: center; gap: 10px; flex-shrink: 0; border-radius: 4px; background: #fdd828; margin-left:0px; color: #181818; } .sign-in-bottom-text a{ color: #fdd828; } .pub-color{ color: #fdd828; } .ahaa-p{ font-size: 16px; font-style: normal; font-weight: 400; line-height: normal; margin:10px 0px; } .ahaa-p a{ color: #fdd828; } .footer-d-none{ display: none !important; } .singup_tnc_position{position: relative !important;} .singup_tnc_position{margin-top: 10px !important;} .d-none{ display:none; } .sign-up-modal-back-link { margin-right: auto !important; margin-left: 10px !important; display: inline-flex; align-items: center; } .sign-up-modal-back-link span { margin-left: 5px; } /** login classes end */ .footer-class{margin-top:24px;}.v2-footer-section {display: flex;flex-direction: column;padding: 30px 150px;width: 100%;}.v2-footer-section .preview-first-row {display: flex;margin-bottom: 10px;justify-content: space-between;margin-top: 15px;}.v2-footer-section .logo-section {display: flex;gap: 10px;margin-bottom: 10px;}.v2-footer-section .logo-section img {height: 50.832px;}.v2-footer-section .logo-section .p-tag-short-bio {max-width: 386px;width:100%;font-size: 14px;font-weight: 400;line-height: 20px;}.v2-footer-section .newsletter-section .title {font-size: 18px;font-weight: 600;line-height: 27px;text-transform: uppercase;}.v2-footer-section .newsletter-section .sub-title {font-size: 14px;font-weight: 400;line-height: 18.209px;}.v2-footer-section .newsletter-section .newsletter-input {display: flex;gap: 10px;margin-top: 15px;}.v2-footer-section .newsletter-section .newsletter-input input {display: flex;font-size:14px;padding: 4.5px 12px;align-items: center;gap: 12px;border-radius: 3px;border: 0.75px solid #d3d3d3;}.v2-footer-section .newsletter-section .newsletter-input .input-field-name {width: 113.25px;height: 32.25px;}.v2-footer-section .newsletter-section.newsletter-input .input-field-email {width: 206px;height: 32px;}.v2-footer-section .newsletter-section .newsletter-input .subscribe-button {height: 32px;display: grid;place-items: center;padding:0px 10px;border-radius: 3px;background: #fdd828;font-size: 13px;font-weight: 400;color:#181818;}.footer-preview-hr-non-amp {background: #262626;}.footer-preview-hr{border:1px solid #262626 }.preview-first-row {display: flex;margin-bottom: 10px;justify-content: space-between;}.preview-first-row .second-column .show-app-link-section {justify-content: space-around;max-height: 60px;border-radius: 5.442px;background: #d9d9d9;gap: 5px;padding: 0px 10px;width: min-content;margin: 0px auto;}.preview-first-row .second-column .show-app-link-section p {margin-bottom: 0px;padding-top: 6px;}.preview-first-row .second-column .show-app-link-section p a .image {width: 182.302px;height: 39px;}.v2-footer-app-link{width: 140px;height: 48px;}.preview-first-row .second-column .social-logo-section {display: flex;max-width: 295px;gap: 16px;flex-wrap: wrap;margin-top: 20px;justify-content: center;}.preview-first-row .second-column .social-logo-section a{margin-right: 20px;}.preview-second-row .menu-title, .preview-third-row .menu-title{display: flex;align-items: flex-end;}.links-div {max-width: 100%;width: 100%;display: flex;flex-wrap: wrap;}.preview-second-row .menu-title .add-link-menu-title, .preview-third-row .menu-title .add-link-menu-title {border: none;font-size: 12px;font-weight: 400;line-height: 20px;margin-left: 10px;}.preview-second-row .quick-link-title, .preview-third-row .quick-link-title {font-size: 18px;font-weight: 600;line-height: 27.6px;text-transform: uppercase;letter-spacing: -0.26px;text-align: start;}.preview-second-row span,.preview-third-row span {text-align: start;letter-spacing: -0.26px;font-size: 14px;font-weight: 400;line-height: 24px;text-transform: capitalize;}.preview-second-row ul.links-div li, .preview-third-row ul.links-div li {width: 16.6666666667%;}.preview-second-row .add-link-input-text, .preview-third-row .add-link-input-text {display: flex;padding: 6px 16px 0px 0px;margin-top: 6px;margin-right: 10px;align-items: center;gap: 16px;border-radius: 4px;color: inherit;}.preview-fourth-row {display: flex;gap: 10px;flex-direction: column;}.preview-fourth-row .menu-title {display: flex;align-items: flex-end;justify-content: space-around;margin: 0px auto;}.preview-fourth-row .menu-title .links-div {margin: 0px auto;justify-content: space-around;}.preview-fourth-row .affiliate-website-link {display: flex;margin: 5px;padding: 13.334px 0px 12.941px 0px;justify-content: center;align-items: center;border-radius: 5.275px;background: #fff;box-shadow: 0px 1.731px 25.962px 0px rgba(19, 85, 255, 0.08);}.preview-fourth-row .affiliate-website-link .image {width: 161px;height: 44px;}.copy-right-text-publive-logo{display: flex;align-items: center;}.preview-last-row{display: flex;justify-content: center;}.preview-last-row .copy-right-text-publive-logo .copy-right-text , .footer-v2-powered-by-label{text-align: center;font-size: 14px;font-weight: 400;line-height: 18px;margin: 0px 5px;}ul.links-div{padding-left: 1rem;}.first-column-hr-tag{display: none;}.captcha-container{margin-top:5px;max-width: 200px;max-height: 50px;}.newsletter-section .captcha{transform:scale(0.6);transform-origin:0 0;width:200px;}footer .footer-svg-color{fill:#383D38 ;}footer .footer-svg-bg{fill:#fff ;} .v1_footer_brand svg path{fill:#181818;} @media (max-width: 993px) {.v2-footer-section .preview-first-row{flex-direction: column;}.newsletter-below-hr{margin-top: 15px;}.first-column-hr-tag{width: 100%;display: block;}.quick-link-items {padding-top: 15px;}.preview-first-row .second-column .social-logo-section{max-width: 100%;}.v2-footer-section .preview-first-row .first-column .image-section{display:flex;gap:5px;justify-content: center;flex-direction: column;align-items: center;}.preview-first-row .newsletter-section p{text-align: start;}.v2-footer-section .preview-first-row .first-column .newsletter-section .footer-news-letter-form{display: flex;flex-direction: column;}.v2-footer-section .preview-first-row .first-column .newsletter-section .footer-news-letter-form input{width: 100%;min-width: 100%;}.preview-first-row .second-column .show-app-link-section{margin-top: 15px;}.preview-third-row{margin-top: 15px;}.preview-second-row ul.links-div li, .preview-third-row ul.links-div li {width: 50%;}.copy-right-text-publive-logo {display: flex;align-items: center;flex-direction: column;}.social-logo-section{display: flex;justify-content: center;}.preview-first-row .second-column .show-app-link-section{background:transparent;}.v2-footer-section .newsletter-section .newsletter-input {flex-direction:column;}.v2-footer-section .logo-section{margin-bottom:0px;}.v2-footer-section .newsletter-section {display:none;}}@media (max-width: 750px) {.v2-footer-section{padding:30px;}.v2-footer-section .newsletter-section .newsletter-input .subscribe-button{width:auto;}}@media (max-width: 490px) {.v2-footer-section{padding: 15px 15px;}.preview-second-row ul.links-div li, .preview-third-row ul.links-div li {width: 50%;}.v2-footer-section .preview-first-row .first-column .newsletter-section .title{font-size: 16px;font-style: normal;font-weight: 400;line-height: 27.6px;text-transform: uppercase;}.v2-footer-section .preview-first-row .first-column .newsletter-section .sub-title{font-size: 12px;font-style: normal;font-weight: 400;line-height: 18px;}.v2-footer-section .preview-first-row .first-column .newsletter-section .footer-news-letter-form{gap: 16px;}.v2-footer-section .preview-first-row .first-column .image-section .image{margin-bottom: 15px;}.v2-footer-section .preview-first-row .first-column .image-section{justify-content: space-between;flex-direction: column;align-items: center;}.social-logo-section{display: flex;justify-content: flex-end;}}@media (max-width: 490px) and (min-width: 450px) {}@media (max-width: 450px) and (min-width: 375px) {.preview-second-row .add-link-input-text, .preview-third-row .add-link-input-text{}.preview-second-row .menu-title .links-div, .preview-third-row .menu-title .links-div{}} .footer-preview-hr-non-amp {margin:0px;margin: 1rem 0;color: inherit;border: 0;border-top: var(--bs-border-width) solid;opacity: .25;} .subscribe-text{ display: flex; flex-direction: column; align-items: center; align-items: flex-start; zoom: 0.9; margin: 20px; } .subscribe-text-head{ color: var(--p-txt-1-color); font-size: 24px; font-style: normal; font-weight: 700; line-height: 41.197px; /* 171.655% */ } .subscribe-text input{ border: 1px solid #b3b3b3; border-radius: 10px; font-style: normal; font-weight: 400; font-size: 16px; line-height: 24px; color: var(--p-txt-color); padding: 7px 15px; background-color: var(--p-bg-high-color); } .subscribe-text button{ background:#fdd828; border-radius: 8px; } .subscribe-text button span{ font-style: normal; font-weight: 600; font-size: 20px; line-height: 30px; color: #181818; } .my-float{ z-index:10 } .w-50 { width: 50%!important; } .w-100 { width: 100%!important; } .flex-column{ flex-direction:column; } .subscribe-text { display: flex; flex-direction: column; align-items: center; } .newsletter-page-default {background: #FEFBF6;padding: 50px 0px 200px 200px;align-items:center;}.newsletter-default-image{max-width: 500px;width:100%;}.newsletter-default-image img {max-width:500px;width:100%;}.newsletter-page-default-title{color: #181818;font-size: 60px;font-style: normal;font-weight: 700;line-height: 80px;margin:10px 0px;}.newsletter-page-default-sub-title{color: #303030;font-size: 24px;font-style: normal;font-weight: 400;line-height: 24.413px;} @media (max-width: 993px) { .newsletter-page-default { background: #FEFBF6; padding: 100px 20px; } } .success-style-css{ width:100%;padding-top: 15px; } .gh-post-page__content .mce-toc ul li::before{ content:"" } .gh-post-page__content .mce-toc a{ text-decoration:none!important; color:#181818!important; } .gh-post-page__content .mce-toc:not(.ghost-css-exclusion-classes) { padding-left: 24px !important; padding-right: 24px !important; } html{ scroll-padding-top: calc(var(--main-div-padding) + 10px); scroll-behavior:smooth; } #postContent .mce-toc a, .mce-toc a{ text-decoration:none; } #postContent .mce-toc ul >li, .gh-post-page__content .mce-toc ul >li{ list-style:auto; font-weight:600; } #postContent .mce-toc ul li ul li , .gh-post-page__content .mce-toc ul li ul li{ list-style:disc; font-size: 14px; font-weight: 400; } #postContent .mce-toc , .gh-post-page__content .mce-toc{ padding:16px 24px; background-color: #e6f7ff; position: relative; width: 100%; background-color:#fdd8281f; } #postContent .mce-toc h2 , .gh-post-page__content .mce-toc h2 { font-size: 24px; font-weight: 600; margin:10px 0px; margin: 0; display: flex; justify-content: space-between; align-items: center; } #postContent .mce-toc h2::after, .gh-post-page__content .mce-toc h2::after { content: '\25BC'; font-size: 14px; cursor: pointer; transition: transform 0.3s ease; } #postContent .mce-toc.collapsed h2::after , .gh-post-page__content .mce-toc.collapsed h2::after { transform: rotate(-90deg); } #postContent .mce-toc ul, .gh-post-page__content .mce-toc ul { list-style-type: none; padding-left: 20px; margin: 0; } #postContent .mce-toc li, .gh-post-page__content .mce-toc li { margin: 5px 0; font-size: 16px; } #postContent .mce-toc a, .gh-post-page__content .mce-toc a { text-decoration: none; } #postContent .mce-toc ul ul , .gh-post-page__content .mce-toc ul ul{ margin-left: 15px; padding-left: 10px; } #postContent .mce-toc.collapsed ul, .gh-post-page__content .mce-toc.collapsed ul { display: none; } #postContent .mce-toc li a:hover, .gh-post-page__content .mce-toc li a:hover { color: #fdd828; } #postContent .mce-toc li a:focus-visible, .gh-post-page__content .mce-toc li a:focus-visible { color: #fdd828; } .home_webstory_container{ padding:2rem 2.3rem; border-radius:10px; margin-top:2rem; position: relative; background-color: #fdd8283d; } .home_webstory_container .web-story--title a, .web-story--title{ color:var(--color-main); padding:0px; } .webstory-box{ overflow-x:auto; color:#fff; scrollbar-width: none; } .home_webstory_container .webstory-list{ overflow-x: visible; display: flex; gap: 10px; min-height: 260px; padding: 10px 0px; width: max-content!important; } .home_webstory_container .webstory-list .web-story-item{ aspect-ratio: 9 / 16; border-radius:10px; transition: box-shadow 0.2s ease-in-out; } .home_webstory_container .web-story-item:hover{ box-shadow: 0 0 10px rgba(var(--black-rgb), 1); } #web-story-title p { color: #fff !important; } .web-story-category-link { font-size: 14px; color: white; z-index: 3; align-self: flex-start; margin: auto 5px auto 0.4rem; padding-bottom: 0px; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; } .slider button { position: absolute; top: 50%; transform: translateY(-50%); background-color: rgba(0, 0, 0, 0.5); color: white; border: none; padding: 5px 9px; border-radius:50%; cursor: pointer; display: flex; } .slider button svg { fill:#fff; } .slider button.prev { left: 4px; display:none; } .slider button.prev svg { transform:rotate(180deg) } .slider button.next { right: 4px; } .web-story_collection { color: white; max-width: 1200px; width:100%; height: 90%; padding: 1rem; padding-bottom: 2rem; } .web-story--title { font-size: 1.5em; color: white; font-weight: bolder; padding-bottom: 1rem; padding-left: 3px; } .web-story--title a { color: white; } .web-story-list{ display: grid; grid-template-columns: repeat(4, 1fr); height: 100%; gap: 1px; overflow-x:auto; } .web-story-item { height: 395px; position: relative; display: flex; justify-content: flex-end; padding: 1rem; overflow: hidden; flex-direction: column; } .web-story_collection .web-story-item{ margin: 0px 3px; } .web-story-item:hover { box-shadow: 0 0 10px rgba(var(--black-rgb), 0.2); } .web-story-img{ position: absolute; top: 0; left: 0; height: 100%; width: 100%; } .web-story-img img { height: 100%; width: 100%; aspect-ratio: 9/16; object-position: 50% 0; } #web-story-title { /*height: 2rem;*/ z-index: 2; } .web-story-item div p{ font-weight: 600; font-size: 16px; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; z-index: 2; word-wrap: break-word; overflow: hidden; } .web-story-category-link:hover { color: white; } .web-story-link{ background-color: transparent; position: absolute; top: 0; left: 0; height: 100%; width: 100%; z-index: 5; } #web-story-icon{ position: absolute; top: 10px; height: 2rem; max-width: 10rem; background: rgba(0, 0, 0, 0.67); padding: 2px; border-radius: 11px; z-index: 3; display: flex; justify-content: center; align-items: center; } #web-story-icon div { height: 1.2rem; width: 1.2rem; } .web-story-shadow{ 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Here’s what researchers say", "image": [ "https://img-cdn.thepublive.com/fit-in/1200x675/filters:format(webp)/wion/media/media_files/2025/01/06/TRNR5CsPEbIeTnWdVNhh.jpg" ], "datePublished": "2025-02-25T23:07:07.537+05:30", "dateModified": "2025-02-25T23:07:07.537+05:30", "author": [{ "@type": "Person", "name": "Wion Web Desk", "url": "https://www.wionews.com/author/wion-web-desk" }], "publisher": { "@type": "Organization", "name": "Wion", "SameAs": [ "https://www.facebook.com/WIONews/", "", "https://x.com/WIOnews", "", "https://www.youtube.com/channel/UC_gUM8rL-Lrg6O3adPW9K1g", "" ], "logo": { "@type": "ImageObject", "url": "https://img-cdn.thepublive.com/fit-in/600x60/filters:format(webp)/wion/media/agency_attachments/2024/12/13/2024-12-13t071548098z-wionlogo.webp", "width":600, "height":60 } }, "isAccessibleForFree":"True", "keywords":" covid, pandemic, vaccine, virus ", "associatedMedia":{ "@type":"ImageObject", "url":"https://img-cdn.thepublive.com/fit-in/1200x675/filters:format(webp)/wion/media/media_files/2025/01/06/TRNR5CsPEbIeTnWdVNhh.jpg", "width":1200, "height":675 }, "description": "Science & tech | Science: The study revealed that people with PVS symptoms had lower levels of two types of white blood cells, while people with PVS who never had COVID also had lesser antibodies against the SARS-CoV-2 spike protein.", "inLanguage": "en", "articleBody": "While COVID-19 vaccines did not cause any side effects for the majority of people, some people experience &quot;post-vaccination syndrome&quot; (PVS), a condition in which people have chronic symptoms that may last for months or even years. Advertisment A team of researchers from Yale School of Medicine identified “potential immunological patterns” in people with PVS. The findings may help pave the way for future treatments, the New York Post reported. Also read | Cardiac arrest cases rising after Covid pandemic? “This work is still in its early stages, and we need to validate these findings,” said co-senior study author Akiko Iwasaki in a press release. He is a Sterling Professor of Immunobiology at Yale School of Medicine. Advertisment“But this is giving us some hope that there may be something that we can use for diagnosis and treatment of PVS down the road.” According to the researchers, people with this condition suffer from extreme fatigue, exercise intolerance, brain fog, insomnia, and dizziness. The symptoms develop within a day or two of vaccination and can get worse over time. “It&quot;s clear that some individuals are experiencing significant challenges after vaccination. Our responsibility as scientists and clinicians is to listen to their experiences, rigorously investigate the underlying causes, and seek ways to help,” said co-senior author Harlan Krumholz, professor of cardiology at YSM. Advertisment Also read | Another year, another pandemic? China discovers new bat coronavirus that poses risks to humans The researchers studied the blood samples of 42 participants who were experiencing PVS symptoms and 22 who were not. Findings of study The study revealed that people with PVS symptoms had lower levels of two types of white blood cells, while people with PVS who never had COVID also had lesser antibodies against the SARS-CoV-2 spike protein, likely due to fewer vaccine doses. “Fewer vaccine doses and no viral infection means the body&quot;s immune system has had little opportunity to develop a defence to the virus,” the researchers said. Also read | No, humans did not really change Moon&#x27;s temperatures during Covid lockdown: Study Some people with PVS also showed high levels of SARS-CoV-2 spike protein, which allows the virus to infect host cells. This has often been linked with an increased risk of developing long COVID. “We don&quot;t know if the level of spike protein is causing the chronic symptoms, because there were other participants with PVS who didn&quot;t have any measurable spike protein—but it could be one mechanism underlying this syndrome,” said Iwasaki. Apart from elevated spike proteins, other factors, including autoimmunity, tissue damage, and reactivation of Epstein-Barr virus (EBV), may also increase the risk of PVS. Future research The study highlights that a very small percentage of people who received COVID-19 vaccines and experienced prolonged side effects have a persistent spike protein and may also experience immune disruption. Also read | Study raises safety concerns over some imported generic drugs “We&quot;re only just starting to make headway in understanding PVS,” said Krumholz. “Every medical intervention carries some risk, and it&quot;s important to acknowledge that adverse events can occur with vaccines.” “Our focus must remain on understanding what these people are experiencing through rigorous science and addressing the needs of those affected with compassion and an open mind.” The researchers agreed that the matter needs to be further studied to understand how common this condition is and how to predict and treat it. 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article_scroll_post_science-techwhy-do-covid-vaccines-cause-chronic-issues-for-some-heres-what-researchers-say-8756916" data-page-url="/science-tech/why-do-covid-vaccines-cause-chronic-issues-for-some-heres-what-researchers-say-8756916" data-page-title="Why do COVID vaccines cause chronic issues for some? Here’s what r…" data-page-primary-category="science-tech" data-page-author="wion-web-desk" data-page-post-id="8277808" data-page-publisher-id="3565" data-page-lang-code="en" data-page-publisher-domain="www.wionews.com" data-page-article-type="Article"> <header class="gh-post-page__header"> <div class="gh-tags-wrapper post-page-tags"> <svg width="10" height="10" viewBox="0 0 6 6" fill="#161616" xmlns="https://www.w3.org/2000/svg"> <path d="M5 3L0.5 5.59808V0.401924L5 3Z" /> </svg> <a href="https://www.wionews.com/science-tech" class="gh-tag-link" >SCIENCE & TECH</a> </div> <h1 class="gh-post-page__title">Why do COVID vaccines cause chronic issues for some? Here’s what researchers say</h1> <div class="publive-dynamic-container dynamic-container" style="width:auto;height:auto;"> <span class="publive-slot-span ">Advertisment</span> <div class="story-highlightshead"> <p >STORY HIGHLIGHTS</p> <hr> <h2 class="gh-post-page__excerpt">The study revealed that people with PVS symptoms had lower levels of two types of white blood cells, while people with PVS who never had COVID also had lesser antibodies against the SARS-CoV-2 spike protein, likely due to fewer vaccine doses.</h2> </div><div class="pl-byline-arrangement"> <div class="byline-avatar"> <img src="https://img-cdn.thepublive.com/fit-in/580x348/filters:format(webp)/wion/media/member_avatars/sites/default/files/styles/medium/public/2020/03/20/133766-wion2.jpg" alt="Author Avatar"> </div> <div class="written-by pl-byline-inner-arrangement"> <span style="color: var(--color-text);">Authored by:</span> <a href="https://www.wionews.com/author/wion-web-desk">Wion Web Desk</a> </div> <div class="reported-by pl-byline-inner-arrangement"> <span style="color: var(--color-text);font-weight: 600;">|</span> <span style="color: var(--color-text);">Reported by:</span> <a href=""><p></p></a> </div> <div class="edited-by pl-byline-inner-arrangement"> <span style="color: var(--color-text);font-weight: 600;">|</span> <span style="color: var(--color-text);">Edited by:</span> <a href="https://www.wionews.com/author/prajvi-mathur"><p>Prajvi Mathur</p></a> </div> <div class="translated-by pl-byline-inner-arrangement"> <span style="color: var(--color-text);font-weight: 600;">|</span> <span style="color: var(--color-text);">Translated by:</span> <a href=""><p></p></a> </div> </div> </div> <h2 class="gh-post-page__excerpt">The study revealed that people with PVS symptoms had lower levels of two types of white blood cells, while people with PVS who never had COVID also had lesser antibodies against the SARS-CoV-2 spike protein, likely due to fewer vaccine doses.</h2> <div 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src="https://img-cdn.thepublive.com/fit-in/1280x720/filters:format(webp)/wion/media/media_files/2025/01/06/TRNR5CsPEbIeTnWdVNhh.jpg" alt=" Representative image of virus. Photograph: (Pixabay) " class="gh-post-page__image" > </picture> <figcaption class="gh-card-image__caption">Representative image of virus. Photograph: (Pixabay)</figcaption> </figure> <div class="post-page-main-content-8277808 gh-post-content-container cropped"> <div class="post-content"> <p>While COVID-19 vaccines did not cause any side effects for the majority of people, some people experience ‘post-vaccination syndrome’ (PVS), a condition in which people have chronic symptoms that may last for months or even years.</p> <div class='responsive-ad-css'><div class='publive-dynamic-container over-hidden article-mid-ads-style bottom-margin' style='margin-top:10px;margin-bottom:10px;width:auto;height:auto;'><span class='publive-slot-span'>Advertisment</span> <div id='div-gpt-ad-1734334495140-3' class= 'next_page_hide' style='min-width: 300px; min-height: 250px;'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-ad-1734334495140-3'); }); </script> </div></div></div><p>A team of researchers from Yale School of Medicine identified “potential immunological patterns” in people with PVS. The findings may help pave the way for future treatments, the New York Post reported.</p> <p><strong>Also read | <a href="https://www.wionews.com/videos/cardiac-arrest-cases-rising-after-covid-pandemic-8708031" target="_blank">Cardiac arrest cases rising after Covid pandemic?</a></strong></p> <p>“This work is still in its early stages, and we need to validate these findings,” said co-senior study author Akiko Iwasaki in a press release. He is a Sterling Professor of Immunobiology at Yale School of Medicine.</p> <div class='responsive-ad-css'><div class='publive-dynamic-container over-hidden article-mid-ads-style bottom-margin' style='margin-top:10px;margin-bottom:10px;width:auto;height:auto;'><span class='publive-slot-span'>Advertisment</span><div id = "v-wionews-v0" class= 'next_page_hide' ></div></div></div><p>“But this is giving us some hope that there may be something that we can use for diagnosis and treatment of PVS down the road.”</p> <p>According to the researchers, people with this condition suffer from extreme fatigue, exercise intolerance, brain fog, insomnia, and dizziness. The symptoms develop within a day or two of vaccination and can get worse over time.</p> <p>“It’s clear that some individuals are experiencing significant challenges after vaccination. Our responsibility as scientists and clinicians is to listen to their experiences, rigorously investigate the underlying causes, and seek ways to help,” said co-senior author Harlan Krumholz, professor of cardiology at YSM.</p> <div class='responsive-ad-css'><div class='publive-dynamic-container over-hidden article-mid-ads-style bottom-margin' style='margin-top:10px;margin-bottom:10px;width:auto;height:auto;'><span class='publive-slot-span'>Advertisment</span><div id="taboola-mid-article-thumbnails" class= 'next_page_hide' style="background:#fff;" ></div> </div></div><p><strong>Also read | <a href="https://www.wionews.com/world/another-year-another-pandemic-china-discovers-new-bat-coronavirus-that-poses-risks-to-humans-8744960" target="_blank">Another year, another pandemic? China discovers new bat coronavirus that poses risks to humans</a></strong></p> <p>The researchers studied the blood samples of 42 participants who were experiencing PVS symptoms and 22 who were not.</p> <h2><strong>Findings of study</strong></h2> <p>The study revealed that people with PVS symptoms had lower levels of two types of white blood cells, while people with PVS who never had COVID also had lesser antibodies against the SARS-CoV-2 spike protein, likely due to fewer vaccine doses.</p> <p>“Fewer vaccine doses and no viral infection means the body’s immune system has had little opportunity to develop a defence to the virus,” the researchers said.</p> <p><strong>Also read | <a href="https://www.wionews.com/science-tech/earth-moon-temperatures-covid-lockdown-8697891" target="_blank">No, humans did not really change Moon's temperatures during Covid lockdown: Study</a></strong></p> <p>Some people with PVS also showed high levels of SARS-CoV-2 spike protein, which allows the virus to infect host cells. This has often been linked with an increased risk of developing long COVID.</p> <p>“We don’t know if the level of spike protein is causing the chronic symptoms, because there were other participants with PVS who didn’t have any measurable spike protein—but it could be one mechanism underlying this syndrome,” said Iwasaki.</p> <p>Apart from elevated spike proteins, other factors, including autoimmunity, tissue damage, and reactivation of Epstein-Barr virus (EBV), may also increase the risk of PVS.</p> <h2><strong>Future research</strong></h2> <p>The study highlights that a very small percentage of people who received COVID-19 vaccines and experienced prolonged side effects have a persistent spike protein and may also experience immune disruption.</p> <p><strong>Also read | <a href="https://www.wionews.com/science-tech/study-raises-safety-concerns-over-some-imported-generic-drugs-8752641" target="_blank">Study raises safety concerns over some imported generic drugs</a></strong></p> <p>“We’re only just starting to make headway in understanding PVS,” said Krumholz. “Every medical intervention carries some risk, and it’s important to acknowledge that adverse events can occur with vaccines.”</p> <p>“Our focus must remain on understanding what these people are experiencing through rigorous science and addressing the needs of those affected with compassion and an open mind.”</p> <p>The researchers agreed that the matter needs to be further studied to understand how common this condition is and how to predict and treat it.</p> <p><em>(With inputs from agencies)</em></p> </div> <div class="posts-tags"> <a href="/tags/covid" class="tag-link" aria-label="covid" target="_blank"> covid</a> <a href="/tags/pandemic" class="tag-link" aria-label="pandemic" target="_blank"> pandemic</a> <a href="/tags/vaccine" class="tag-link" aria-label="vaccine" target="_blank"> vaccine</a> <a href="/tags/virus" class="tag-link" aria-label="virus" target="_blank"> virus</a> </div> </div> </div> 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Why do COVID vaccines cause chronic issues for some? Here’s what researchers say