Coronavirus antibodies decline after infection, study finds, raising questions about herd immunity CNBCBritish study shows evidence of waning immunity to Covid-19 CNNAsymptomatic virus sufferers lose antibodies sooner: Study - The Jakarta Post Jakarta PostMillions at risk of COVID-19 'reinfection' as immunity could last just months The SunStudy Shows Covid-19 Antibodies Waning Over Time, Suggesting Immunity May Wear Off msnNOWView Full Coverage on Google News