Updated mRNA-1273 vaccine was effective against severe COVID-19 outcomes in older and high-risk adults during the 2024-2025 season.

Several states have issued their own guidance about COVID-19 vaccines since the FDA released its 2025-2026 formula approvals on Aug. 27, significantly restricting who can access the vaccines for the ...

COVID-19 viral activity was high in the United States during the first week of September, according to fresh data from the Centers for Disease Control and Prevention. Some regions of the United States ...

As states grappled with confusion around vaccines, COVID-19 cases have continued to fluctuate nationwide. Some regions of the United States are experiencing "very high" COVID viral activity, according ...

A group of experts that advises the US Centers for Disease Control and Prevention on its vaccine recommendations has suspended an anticipated push to stop recommending mRNA-based Covid-19 vaccines ...

NEW YORK -- The United States has seen progress on several fronts against Covid-19 this week -- including the opening of new mass inoculation sites and a third vaccine maker seeking authorization.

Valerie Brickey went to three pharmacies and her regular pediatrician in late September in an effort to find a Covid-19 vaccine for her 16-year-old granddaughter, Ryleigh. Both Brickey and her ...

New COVID-19 variant XFG has firmly positioned itself as the predominant strain in the United States as cases continue to crop up nationwide. Some regions of the U.S. are experiencing higher rates of ...