",{"id":"SIGNIN"}).html('
×
').appendTo("body");jQuery("#SIGNIN").on('click',function(e){closeLogin()})},closeLogin=function(){jQuery("#SIGNIN").remove();jQuery("body").css("overflow","inherit")},adjustLoginHeight=function(h){jQuery("#Oframe").height(h)},login_success=function(sess){jQuery(".sign-up").html("LOGOUT").on('click',function(){location.href="https://signin."+CEN_DOMAIN+"/oauth/logout"});closeLogin()},LANG='en',commentHeight=function(data){jQuery("#block-ibt-comment iframe").height(data.height)};var login_success=function(sess){closeLogin();jQuery("article").removeClass("wall");jQuery(".login-btn .sign-up2").hide();jQuery(".login-btn .myaccount").show();jQuery(".only-before-login").hide();if(typeof sess=='object'){sess=sess.sess};jQuery("
",{"id":"TEMPE"}).html('').appendTo("body");jQuery("#TEMPE iframe").on("load",function(){jQuery("#TEMPE").remove();if(jQuery("iframe.comment").length){jQuery("iframe.comment").get(0).contentWindow.postMessage({'action':'success',},'*')}});afterLogin()};function afterLogin(){};doFir.push(function(){jQuery(document).ready(function(){jQuery(".sign-up2").on('click',function(e){e.preventDefault();e.stopPropagation();openLogin('https://signin.'+DOMAIN.replace(/ibtimes\.[\.a-z]+/,'ibtimes.com')+'/oauth?l='+jQuery(this).attr('data-lang'))})})})
A new study found that whopping cough in infants is most likely due to exposure to infected siblings. This is in contrast to previous notions that mothers are the most common source of infection.