The United States has officially withdrawn from the World Health Organization (WHO), citing the organization’s alleged ...

Discover how UCSF is leading the charge in Long COVID research, uncovering key findings that advance our understanding of the condition. UCSF researchers have adapted innovative tools and ...

US Exits WHO: The withdrawal of the US from the WHO was reportedly carried out through an executive order signed by US ...

Infant protection against respiratory syncytial virus (RSV) by maternal RSV vaccination or receipt of RSV monoclonal antibody ...

After nearly 80 years of membership, the U.S. is officially no longer part of the World Health Organization (WHO). President ...

On Jan. 21, 2020, the U.S. Centers for Disease Control and Prevention confirmed the United States' first known case of novel ...

State health officials confirmed a second pediatric death associated with the flu this season. Here's what to know.

Vaccine effectiveness against COVID-19 infection dropped from 91% to 66% once the delta variant accounted for the majority of circulating virus, according to a study published Tuesday by the U.S.

The United States is seeing a large decline in new COVID-19 cases -- but there's a major caveat. According to a CNN analysis of data from Johns Hopkins University, the US is seeing a 29% decline in ...

Add Yahoo as a preferred source to see more of our stories on Google. If you’re like most people in the US, you probably either know someone with COVID-19 right now, know someone who just got over an ...

Just six years ago on Jan. 20, 2020, the first confirmed case of COVID-19 was found in the United States.