@nycexpatmom Highly unlikely they had never been infected. Random testing with Tcell test showed over 90% prior SARSCoV2 infection in Jan 2021 in the US and separately in remote African regions Ab testing is poor, & swabs are very inaccurate: https://
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@NoyesJHumphrey @fitterhappierAJ @BallouxFrancois @VirusesImmunity “Significantly higher frequencies of polyfunctional cytokine nucleocapsid reactive CD4+ T cells (triple positive for IFNγ, TNFα, and IL-2) were observed in both, seropositive and seronegati
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@ben_twink @ConSelfOwns Not sure why you can't do your own research, laziness I guess but here you go. https://t.co/bHFo266B1x and https://t.co/o7OE4oHNNn and https://t.co/rmhT4QNL9U
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RT @vmcorman: Reactive T Cells in Convalescent COVID-19 Patients With Negative SARS-CoV-2 Antibody Serology https://t.co/z10qWtSe14 @FrontI…