Being infected with COVID-19 may temporarily provide protection against reinfection. However, it's unknown how long that protection lasts and how valuable it is against different variants of the virus ...

In most cases, a positive antigen test would likely have confirmed they were positive for Covid, and those infected would ...

People who've had COVID-19 are highly unlikely to contract it again for at least six months after the first infection, according to a British study of healthcare workers on the frontline of fight ...

Five years ago, COVID was all we could think about. Today, we'd rather forget about lockdowns, testing lines and social distancing. But the virus that sparked the pandemic, SARS-CoV-2, is still ...

Guidance for asymptomatic people differs depending on vaccination status. Amidst growing pressure as COVID-19 cases surge across the country, the U.S. Centers for Disease Control and Prevention (CDC) ...

White House doctor Sean Conley said on Saturday that President Donald Trump is "doing well" and has been "fever free" for the last 24 hours, after it was announced he tested positive for COVID-19 on ...