As the highly contagious Delta variant tore through healthcare systems, officials approved a third vaccine for those most at-risk ...

Even as the acute phase of the COVID-19 pandemic has faded into memory, one question has continued to trouble clinicians and ...

Smaller doses of COVID-19 booster vaccines can provide long-lasting immunity, helping to reduce costs and improve access to vaccination, according to new research. And the findings could also inform ...

A mumps outbreak at San Diego State has grown to 15 confirmed and probable cases, prompting the university to offer free MMR ...