A higher proportion of adolescents who tested positive for COVID-19 reported ongoing symptoms compared with those who tested negative or never tested.

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 ...

Please provide your email address to receive an email when new articles are posted on . A group of emerging SARS-CoV-2 viruses have been nicknamed the “FLiRT” variants. So far, it appears that ...

The U.S. Food and Drug Administration said on Tuesday it is alerting clinical laboratory staff and healthcare providers that false positive results can occur with COVID-19 antigen tests.

Seroprevalence was highest among males of Black race or Hispanic ethnicity and was associated with previous COVID-19–compatible illness, a previous positive SARS-CoV-2 test result, and close contact ...

Research reveals a sharp decline in both the effectiveness and duration of protection from prior infection post-Omicron, underscoring the need for updated vaccines to sustain immunity Study: ...

In a large, population-based cohort, previously healthy children and adolescents who experienced acute SARS-CoV-2 infection had more than twice the risk of developing type 1 diabetes (T1D) within 6 ...