Questions about the COVID-19 shot abound as federal recommendations shift and medical groups issue clashing guidance.

COVID-19 vaccinations were shown to reduce virus-related hospitalizations and severe disease-associated outcomes in immunocompetent adults. The findings from a recently published JAMA Network Open ...

Updated 2024-2025 COVID-19 vaccines significantly reduced the risk for hospitalization and severe outcomes despite the emergence of new viral lineages.

A dismantled health infrastructure leaves the U.S. incredibly vulnerable, warns infectious-disease expert Michael Osterholm.

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 ...

Share on Pinterest Two experts answer key questions about the recent COVID-19 vaccine guideline changes. Image credit: MR.WUTTISAK PROMCHOO/Getty Images. Health Secretary Robert F. Kennedy Jr.

The report was based on 15 months of evidence gathering, including analysis of thousands of documents and interviews undertaken.

Co-infection of influenza virus and SARS-CoV-2 can lead to more severe disease than infection of either alone.