The study was originally meant to be published in a CDC weekly report in March.

Bhattacharya attacked study's test-negative design, a staple of vaccine effectiveness rese ...

A spokesperson from HHS, which oversees the CDC, said in April it doubted the study's "methodological approach estimating ...

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 ...

The findings suggest that Covid vaccines reduced the likelihood of severe illness last fall and winter.

Recovery from acute viral infections is heterogeneous and chronic symptoms may linger for months to years in some individuals. Moreover, persistent sequelae may develop after acute infection by a ...

Amid the declining clinical severity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and diminishing public uptake of annual coronavirus disease 2019 (Covid-19) vaccines, ...

Follow this section to personalize your feed and get instant alerts. WHY FOLLOW? Update your preferences in Account Settings Personalized Content Follow this tag to personalize your feed and get ...

Got a sore throat and the sniffles? The recent rise of rapid at-home tests has made it easier to find out if you have a serious illness like COVID-19 or just a touch of spring allergies. But while ...

Post-COVID Condition (PCC) is a widely known sequelae of SARS-CoV-2 infection, affecting different body systems. It refers to a condition characterized by symptoms that persist for at least three ...

PLEASE NOTEThe Washington Post is providing this news free to all readers as a public service. Follow this story and more by signing up for health, science, and environment email alerts. Americans can ...