The immunity gained after a natural infection is short-lived and remaining uninfected can increase the risk of re-infection. COVID-19 , suggests a study published in the journal The Lancet Microbe. During the COVID-19 pandemic, there has been much uncertainty about how long immunity lasts after an unvaccinated person becomes infected with SARS-CoV-2.
“Re-infection can happen in three months or less,” said lead author Jeffrey Townsend, a professor of biostatistics in the Yale School of Public Health.
“Therefore, those who have been naturally infected should get vaccinated. Previous infection alone may provide little long-term protection against subsequent infections,” Townsend said.
The team analyzed known re-infection and immunological data from close viral relatives of SARS-CoV-2, which causes the “common cold” – as well as immunological data from SARS-CoV-1 and Middle East respiratory syndrome. Taking advantage of evolutionary principles, the team was able to model the risk of re-infection of COVID-19 over time.
Re-infection can and does occur some time after recovery. And they will rapidly return to normal as immunity wanes and new SARS-CoV-2 variants emerge.
Alex Dornberg, assistant professor of bioinformatics and genomics at the University of the North, said: “We tend to think of immunity as immunity or immunity. Our study warns that we may need to focus more on the risk of reinfection over time.” should do.” Carolina in Charlotte.
He said, “As new variants emerge, previous immune responses become less effective at fighting off the virus. People who were naturally infected early in the epidemic are more likely to become infected again in the near future.” is,” he said.
The team’s data-driven model revealed striking similarities between SARS-CoV-2 and the endemic coronavirus to the risks of reinfection over time.
Townsend said, “Like the common cold, you can get re-infected with the same virus from one year to the next. The difference is, while this pandemic emerged, COVID-19 has proven to be far more deadly. “
“Because of SARS-CoV-2’s ability to evolve and become re-infected, it also has the potential to transition from an epidemic to an endemic disease,” Dornberg said.
live TV
';
$('div.listing').append(string);
}
});
},
error:function(xhr){
//console.log("Error");
//console.log("An error occured: " + xhr.status + " " + xhr.statusText);
nextload=false;
},
complete: function(){
$('div.listing').find(".loading-block").remove();;
pg +=1;
//console.log("mod" + ice%2);
nextpath="&page=" + pg;
//console.log("request complete" + nextpath);
cat = "?cat=120186";
//console.log(nextpath);
nextload=(ice%2==0)?true:false;
}
});
}
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//console.log("**" + lastoff + "**");
});*/
var maindiv = false;
var dis = 0;
var fbcontainer="";
var fbid = '';
var fb_script=document.createElement('script');
fb_script.text= "(function(d, s, id) {var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) return;js = d.createElement(s); js.id = id;js.src="https://connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v2.9";fjs.parentNode.insertBefore(js, fjs);}(document, 'script', 'facebook-jssdk'));";
var fmain = $(".sr2399783");
//alert(x+ "-" + url);
var fdiv = '
';
//console.log(fdiv);
//$(fb_script).appendTo(fmain);
$(fdiv).appendTo(fmain);
function fillElementWithAd($el, slotCode, size, targeting){
if (typeof targeting === 'undefined') {
targeting = {};
} else if ( Object.prototype.toString.call( targeting ) !== '[object Object]' ) {
targeting = {};
}
var elId = $el.attr('id');
//console.log("elId:" + elId);
googletag.cmd.push(function(){
var slot = googletag.defineSlot(slotCode, size, elId);
for (var t in targeting){
slot.setTargeting(t, targeting
}
slot.addService(googletag.pubads());
googletag.display(elId);
//googletag.pubads().refresh([slot]);
});
}
$(document).delegate("button[id^='mf']", "click", function(){
fbcontainer="";
fbid = '#' + $(this).attr('id');
var sr = fbid.replace("#mf", ".sr");
$(fbid).parent().children(sr).toggle();
fbcontainer = $(fbid).parent().children(sr).children(".fb-comments").attr("id");
});
function onPlayerStateChange(event){
var ing, fid;
//console.log(event + "---player");
$('iframe[id*="video-"]').each(function(){
_v = $(this).attr('id');
//console.log("_v: " + _v);
if(_v != event){
//console.log("condition match");
ing = new YT.get(_v);
if(ing.getPlayerState()=='1'){
ing.pauseVideo();
}
}
});
$('div[id*="video-"]').each(function(){
_v = $(this).attr('id');
//console.log("_v: " + _v + " event: " + event);
if(_v != event){
//jwplayer(_v).play(false);
}
});
}
function onYouTubePlay(vid, code, playDiv,vx, pvid){
if (typeof(YT) == 'undefined' || typeof(YT.Player) == 'undefined') {
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
window.onYouTubePlayerAPIReady = function() {
onYouTubePlayer(vid, code, playDiv,vx, pvid);
};
}else{onYouTubePlayer(vid, code, playDiv,vx, pvid);}
}
function onYouTubePlayer(vid, code, playDiv,vx, pvid){
//console.log(playDiv + "Get Youtue " + vid);
//$("#"+vid).find(".playvideo-"+ vx).hide();
var player = new YT.Player(playDiv , {
height: '450',
width: '100%',
videoId:code,
playerVars: {
'autoplay': 1,
'showinfo': 1,
'controls': 1
},
events: {
'onStateChange': function(event){
onPlayerStateChange(event.target.a.id);
}
}
});
$("#video-"+vid).show();
}
function kalturaPlayerAPIReady(code, playDiv,pvid){
var dt=new Date;
var nt=dt.getTime();
var vtitle = "";
pre_roll = "https://pubads.g.doubleclick.net/gampad/ads?sz=640x480&iu=/11440465/Zeenews_English_Video/Zeenews_English_Preroll&tfcd=0&npa=0&sz=640x480&gdfp_req=1&output=vast&unviewed_position_start=1&env=vp&impl=s&description_url="+vtitle+"&correlator="+nt;
var sources ={};
var config = {
targetId: playDiv,
provider: {
partnerId: 2504201
},
playback: {
pictureInPicture : true,
autoplay: true
},
advertising: {
adBreaks: [{
position: 0,
ads: [{
url: [pre_roll]
}]
}]
},
plugins: {
ima: {
adsResponse: ""
}
}
}
var kalturaPlayer = KalturaPlayer.setup(config);
if(kalturaPlayer){
kalturaPlayer.reset();
}
var videoUrl = code;
var mediaid = '"zn' + pvid + '"';
sources = {
hls: [{
id: mediaid,
url: videoUrl,
mimetype: "application/x-mpegURL"
}]
}
kalturaplayerSetup(kalturaPlayer, sources);
if (typeof kalturaPlayer !== 'undefined') {
doRegisterEvents(kalturaPlayer);
}
}
function kalturaplayerSetup(kalturaPlayer, playbackType){
kalturaPlayer.setMedia({
plugins: {},
sources: playbackType
});
}
function doRegisterEvents(kalturaPlayer) {
/* player event*/
kalturaPlayer.addEventListener(kalturaPlayer.Event.Core.PLAY, playEvent);
kalturaPlayer.addEventListener(kalturaPlayer.Event.Core.PAUSE, pauseEvent);
kalturaPlayer.addEventListener(kalturaPlayer.Event.Core.PLAYBACK_ENDED, playbackEndedEvent);
/* ad event */
kalturaPlayer.addEventListener(kalturaPlayer.Event.AD_STARTED, adStartedEvent);
kalturaPlayer.addEventListener(kalturaPlayer.Event.AD_COMPLETED, adCompletedEvent);
kalturaPlayer.addEventListener(kalturaPlayer.Event.AD_SKIPPED, adSkippedEvent);
kalturaPlayer.addEventListener(kalturaPlayer.Event.AD_CLICKED,adClicked);
}
var vlabel = "https://zeenews.india.com"+$(this).attr("video-path");
var isVideoPlayed = false;
var isAdSkippedCompleted = false;
function adStartedEvent(event) {
var videotype = "zee english video";
gtag('event', 'Adstarted', { 'event_category': videotype, 'event_label': vlabel});
gtag('event', 'Play', { 'event_category': videotype, 'event_label': vlabel});
isVideoPlayed = true;
isAdSkippedCompleted = true;
}
function adCompletedEvent(event) {
var videotype = "zee english video";
gtag('event', 'Adcompleted', { 'event_category': videotype, 'event_label': vlabel});
isAdSkippedCompleted = true;
}
function adSkippedEvent(event) {
var videotype = "zee english video";
gtag('event', 'Adskipped', { 'event_category': videotype, 'event_label': vlabel});
isAdSkippedCompleted = true;
}
function adClicked(event) {
var videotype = "zee english video";
gtag('event', 'Adclicked', { 'event_category': videotype, 'event_label': vlabel});
}
function playbackEndedEvent(event){
var videotype = "zee english video";
gtag('event', 'Complete', { 'event_category': videotype, 'event_label': vlabel});
}
function playEvent(event) {
var videotype = "zee english video";
if((isVideoPlayed) && (isAdSkippedCompleted)){
isAdSkippedCompleted = false;
}else if((isVideoPlayed)){
gtag('event', 'resume', { 'event_category': videotype, 'event_label': vlabel});
}else{
gtag('event', 'Play', { 'event_category': videotype, 'event_label': vlabel});
isVideoPlayed = true;
}
}
function pauseEvent(event) {
var videotype = "zee english video";
gtag('event', 'Pause', { 'event_category': videotype, 'event_label': vlabel});
}
function AdloadEvent(event) {
var videotype = "zee english video";
gtag("event", "kaltura_adloaded", { "event_category": videotype, "event_label": vlabel});
}
function AdProgressEvent(event) {
var videotype = "zee english video";
gtag("event", "kaltura_adprogress", { "event_category": videotype, "event_label": vlabel});
}
function adPausedEvent(event) {
var videotype = "zee english video";
gtag("event", "kaltura_adpaused", { "event_category": videotype, "event_label": vlabel});
}
/* End of Kaltura player function code */
$(document).delegate("div[id^='play']", "click", function(){
//console.log($(this).attr("id"));
//console.log($(this).attr("video-source"));
//console.log($(this).attr("video-code"));
var isyoutube = $(this).attr("video-source");
var vurl = $(this).attr("video-path");
var vid = $(this).attr("id");
$(this).hide();
var pvid = $(this).attr("newsid");
var vx = $(this).attr("id").replace('play-','');
var vC = $(this).attr("video-code");
var playDiv = "video-" + vid + "-" + pvid;
if(isyoutube =='No'){
kalturaPlayerAPIReady(vC, playDiv,pvid);
}else{
onYouTubePlay(vid, vC, playDiv,vx, pvid);
}
});
$(document).delegate("div[id^='ptop']", "click", function(){
var vid = $(this).attr("id").replace('ptop','');
$(this).hide();
var pvid = $(this).attr("newsid");
var vurl = $(this).attr("video-path");
//console.log($(this).attr("id") + "--" + vid);
//console.log($(this).parent().children().find('#play-'+vid).attr("video-source"));
//console.log($(this).parent().children().find('#play-'+vid).attr("video-code"));
var isyoutube = $(this).parent().children().find('#play-'+vid).attr("video-source");
var vC = $(this).parent().children().find('#play-'+vid).attr("video-code");
var playDiv = "mvideo-play-" + vid + "-" + pvid;
if(isyoutube =='No'){
//console.log(jwplayer($(this).attr("id")).getState());
kalturaPlayerAPIReady(vC, playDiv,pvid);
}else{
onYouTubePlay($(this).attr("id"), vC, playDiv, vid, pvid);
}
});
var nxti = 3;
var ci = 1;
var nxti_1 = 6;
var nxti_2 = 9;
var nxti_3 = 12;
if($.autopager==false){
var use_ajax = false;
/*var disqus_shortname="zeehindi";
var disqus_identifier; //made of post id and guid
var disqus_url; //post permalink
function loadDisqus(source, identifier, url, nid) {
if (window.DISQUS) {
//alert("if");
jQuery('
').insertAfter(source);
jQuery('#disqus_thread').insertAfter(source); //append the HTML after the link
//if Disqus exists, call it's reset method with new parameters
DISQUS.reset({
reload: true,
config: function () {
this.page.identifier = identifier;
this.page.url = url;
}
});
}else{
jQuery('
').insertAfter(source);
disqus_identifier = identifier; //set the identifier argument
disqus_url = url; //set the permalink argument
//append the Disqus embed script to HTML
var dsq = document.createElement('script'); dsq.type="text/javascript"; dsq.async = true;
dsq.src="http://" + disqus_shortname + '.disqus.com/embed.js';
jQuery('head').append(dsq);
}
};*/
/*$('.disqusOn').live( "click", notify );
function notify() {
identifier = $(this).attr('id');
dUrl = $(this).attr('disqus-url');
source = $(this).parent();
loadDisqus(jQuery(this), identifier, dUrl);
}*/
function loadshare(curl){
history.replaceState('' ,'', curl);
if(window.OBR){
window.OBR.extern.researchWidget();
}
//console.log("loadshare Call->" + curl);
//$('html head').find('title').text("main" + nxtTitle);
if(_up == false){
var cu_url = curl;
gtag('config', 'UA-2069755-1', {'page_path': cu_url });
if(window.COMSCORE){
window.COMSCORE.beacon({c1: "2", c2: "9254297"});
var e = Date.now();
$.ajax({
url: "/marathi/news/zscorecard.json?" + e,
success: function(e) {}
})
}
//console.log('ga:'+r);
/*(function () {
var ga = document.createElement('script'); ga.type="text/javascript"; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://' : 'http://') + 'stats.g.doubleclick.net/dc.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();*/
//console.log("loadshare Call");
}
}
if(use_ajax==false) {
//console.log('getting');
var view_selector="div.center-section"; // + settings.view_name; + '.view-display-id-' + settings.display;
var content_selector = view_selector; // + settings.content_selector;
var items_selector = content_selector + ' > div.rep-block'; // + settings.items_selector;
var pager_selector="div.next-story-block > div.view-zn-article-mc-all-2017 > div.view-content > div.clearfix"; // + settings.pager_selector;
var next_selector="div.next-story-block > div.view-zn-article-mc-all-2017 > div.view-content > div.clearfix > a:last"; // + settings.next_selector;
var auto_selector="div.tag-block";
var img_location = view_selector + ' > div.rep-block:last';
var img_path="
"; //settings.img_path;
//var img = '
' + img_path + '
';
var img = img_path;
//$(pager_selector).hide();
//alert($(next_selector).attr('href'));
var x = 0;
var url="";
var prevLoc = window.location.pathname;
var circle = "";
var myTimer = "";
var interval = 30;
var angle = 0;
var Inverval = "";
var angle_increment = 6;
var handle = $.autopager({
appendTo: content_selector,
content: items_selector,
runscroll: maindiv,
link: next_selector,
autoLoad: false,
page: 0,
start: function(){
$(img_location).after(img);
circle = $('.center-section').find('#green-halo');
myTimer = $('.center-section').find('#myTimer');
angle = 0;
Inverval = setInterval(function (){
$(circle).attr("stroke-dasharray", angle + ", 20000");
//myTimer.innerHTML = parseInt(angle/360*100) + '%';
if (angle >= 360) {
angle = 1;
}
angle += angle_increment;
}.bind(this),interval);
},
load: function(){
$('div.loading-block').remove();
clearInterval(Inverval);
//$('.repeat-block > .row > div.main-rhs2399783').find('div.rhs2399783:first').clone().appendTo('.repeat-block >.row > div.main-rhs' + x);
$('div.rep-block > div.main-rhs2399783 > div:first').clone().appendTo('div.rep-block > div.main-rhs' + x);
$('.center-section >.row:last').before('
Next Story
');
//$(".main-rhs" + x).theiaStickySidebar();
var fb_script=document.createElement('script');
fb_script.text= "(function(d, s, id) {var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id)) return;js = d.createElement(s); js.id = id;js.src="https://connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v2.9";fjs.parentNode.insertBefore(js, fjs);}(document, 'script', 'facebook-jssdk'));";
var fmain = $(".sr"+ x);
//alert(x+ "-" + url);
var fdiv = '
';
//$(fb_script).appendTo(fmain);
$(fdiv).appendTo(fmain);
FB.XFBML.parse();
var $dfpAd = $('.center-section').children().find("#ad-"+ x);
xp = "#star"+x;
//var $dfpAdrhs = $('.main-rhs' + x).children().find('.adATF').empty().attr("id", "ad-300-" + x); //$('.content-area > .main-article > .row > .main-rhs'+x).find('#ad-300-' + x);
//var $dfpAdrhs2 = $('.main-rhs' + x).children().find('.adBTF').empty().attr("id", "ad-300-2-" + x);//$('.content-area > .main-article > .row > .main-rhs'+x).find('#ad-300-2-' + x);
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//fillElementWithAd($dfpAdrhs2, '/11440465/Zeenews_English_Web/Zeenews_English_AS_BTF_1_300x250', [300, 250], {});
//fillElementWithAd($dfpMiddleAd, '/11440465/Zeenews_Hindi_Article_Middle_300x250_BTF', [300, 250], {});
var instagram_script=document.createElement('script');
instagram_script.defer="defer";
instagram_script.async="async";
instagram_script.src="https://platform.instagram.com/en_US/embeds.js";
/*var outbrain_script=document.createElement('script');
outbrain_script.type="text/javascript";
outbrain_script.async="async";
outbrain_script.src="https://widgets.outbrain.com/outbrain.js";
var Omain = $("#outbrain-"+ x);
//alert(Omain + "--" + $(Omain).length);
$(Omain).after(outbrain_script);
var rhs = $('.main-article > .row > div.article-right-part > div.rhs2399783:first').clone();
$(rhs).find('.ad-one').attr("id", "ad-300-" + x).empty();
$(rhs).find('.ad-two').attr("id", "ad-300-2-" + x).empty();
//$('.main-article > .row > div.article-right-part > div.rhs2399783:first').clone().appendTo('.main-article > .row > div.main-rhs' + x);
$(rhs).appendTo('.main-article > .row > div.main-rhs' + x); */
setTimeout(function(){
var twit = $("div.field-name-body").find('blockquote[class^="twitter"]').length;
var insta = $("div.field-name-body").find('blockquote[class^="instagram"]').length;
if(twit==0){twit = ($("div.field-name-body").find('twitterwidget[class^="twitter"]').length);}
if(twit>0){
if (typeof (twttr) != 'undefined') {
twttr.widgets.load();
} else {
$.getScript('https://platform.twitter.com/widgets.js');
}
//$(twit).addClass('tfmargin');
}
if(insta>0){
$('.content > .left-block:last').after(instagram_script);
//$(insta).addClass('tfmargin');
window.instgrm.Embeds.process();
}
}, 1500);
}
});
/*$("#loadmore").click(function(){
x=$(next_selector).attr('id');
var url = $(next_selector).attr('href');
disqus_identifier="ZNH" + x;
disqus_url = url;
handle.autopager('load');
history.pushState('' ,'', url);
setTimeout(function(){
//twttr.widgets.load();
//loadDisqus(jQuery(this), disqus_identifier, disqus_url);
}, 6000);
});*/
/*$("button[id^='mf']").live("click", disqusToggle);
function disqusToggle() {
console.log("Main id: " + $(this).attr('id'));
}*/
$(document).delegate("button[id^='mf']", "click", function(){
fbcontainer="";
fbid = '#' + $(this).attr('id');
var sr = fbid.replace("#mf", ".sr");
//console.log("Main id: " + $(this).attr('id') + "Goodbye!jQuery 1.4.3+" + sr);
$(fbid).parent().children(sr).toggle();
fbcontainer = $(fbid).parent().children(sr).children(".fb-comments").attr("id");
//console.log(fbcontainer);
//var commentsContainer = document.getElementById(fbcontainer);
//commentsContainer.innerHTML = '
';
});
/************Player Code ***********/
var title, imageUrl, description, author, shortName, identifier, timestamp, summary, newsID, nextnews;
var previousScroll = 0;
//console.log("prevLoc" + prevLoc);
$(window).scroll(function(){
var last = $(auto_selector).filter(':last');
var lastHeight = last.offset().top ;
//st = $(layout).scrollTop();
//console.log("st:" + st);
var currentScroll = $(this).scrollTop();
if (currentScroll > previousScroll){
_up = false;
} else {
_up = true;
}
previousScroll = currentScroll;
//console.log("_up" + _up);
var cutoff = $(window).scrollTop() + 64;
//console.log(cutoff + "**");
$('div[id^="row"]').each(function(){
//console.log("article" + $(this).children().find('.left-block').attr("id") + $(this).children().find('.left-block').attr('data-url'));
if($(this).offset().top + $(this).height() > cutoff){
//console.log("$$" + $(this).children().find('.left-block').attr('data-url'));
if(prevLoc != $(this).children().find('.left-block').attr('data-url')){
prevLoc = $(this).children().find('.left-block').attr('data-url');
$('html head').find('title').text($(this).children().find('.left-block').attr('data-title'));
$('meta[name=description]').attr("content",$(this).children().find('.left-block').attr('data-summary'));
$('meta[name=keywords]').attr("content",$(this).children().find('.left-block').attr('data-keyword'));
$('meta[name=news_keywords]').attr("content",$(this).children().find('.left-block').attr('data-keyword'));
pSUPERFLY.virtualPage(prevLoc,$(this).children().find('.left-block').attr('data-title'));
//console.log("Summary: " + $(this).children().find('.left-block').attr('data-summary'));
//console.log("Keyword: " + $(this).children().find('.left-block').attr('data-keyword'));
//history.pushState('' ,'', prevLoc);
loadshare(prevLoc);
}
return false; // stops the iteration after the first one on screen
}
});
if(lastHeight + last.height() < $(document).scrollTop() + $(window).height()){
//console.log("**get");
url = $(next_selector).attr('href');
x=$(next_selector).attr('id');
//console.log("x:" + x);
//handle.autopager('load');
/*setTimeout(function(){
//twttr.widgets.load();
//loadDisqus(jQuery(this), disqus_identifier, disqus_url);
}, 6000);*/
}
//lastoff = last.offset();
//console.log("**" + lastoff + "**");
});
//$( ".content-area" ).click(function(event) {
// console.log(event.target.nodeName);
//});
/*$( ".comment-button" ).live("click", disqusToggle);
function disqusToggle() {
var id = $(this).attr("id");
$("#disqus_thread1" + id).toggle();
};*/
//$(".main-rhs2399783").theiaStickySidebar();
var prev_content_height = $(content_selector).height();
//$(function() {
var layout = $(content_selector);
var st = 0;
///});
}
}
});
/*}
};*/
})(jQuery);
.