Foreign substances such as mold, hair, and silicon dioxide (silica) were found in COVID-19 vaccines, potentially introduced ...

A rare but serious clotting disorder linked to certain COVID-19 vaccines and natural adenovirus infections has puzzled scientists for years.

COVID-19 vaccination showed effectiveness in reducing hospitalizations and severe disease outcomes associated with the SARS-CoV-2 JN.1 lineage, according to a recent study published in JAMA Network ...

The U.S. Food and Drug Administration approved 2025-26 COVID-19 vaccines for anyone age 65 and older and any person 6 months and older who has at least one underlying health condition that increases ...

Walensky is a professor at Harvard Medical School and served as the 19th director of the Centers for Disease Control and Prevention. Once clinical trials showed that Covid-19 vaccines were safe and ...

A new study analyzing COVID-19 vaccine uptake has found markedly lower vaccination rates among Māori, which researchers link ...

Arbutus alleges that Moderna’s COVID-19 vaccine infringes on patents protecting its lipid nanoparticle delivery technology.

Add Yahoo as a preferred source to see more of our stories on Google. Healthcare professional in protective gloves & workwear holding & organising a tray of COVID-19 vaccine vials This year there are ...

Rare but deadly blood clots tied to J&J and AstraZeneca's vaccines were caused by an autoimmune reaction that some people are predisposed to, researchers found.