In a recent observational study published in the journal Immunity, researchers from the United States of America investigated the longevity of antibody responses to severe acute respiratory syndrome ...

We conducted a phase 2–3 double-blind trial to assess the efficacy and safety of nirmatrelvir–ritonavir in asymptomatic, rapid antigen test–negative adults who had been exposed to a household contact ...

We used a linear mixed-effects model to compare mean EMQ scores among participants before testing and after testing positive or negative for SARS-CoV-2 infection. Analyses were adjusted for ...