Health experts are reinforcing the point that full vaccination remains highly effective against severe illness and death caused by COVID-19 as federal regulators consider the possibility of ...

COVID booster vaccinations reduced the likelihood of hospitalization related to COVID in patients with autoimmune diseases, with monovalent and bivalent booster vaccines showing 38% and 32% ...

Some people vaccinated against COVID-19 initially acquire strong levels of neutralizing antibodies but then experience rapid declines. Measuring immunoglobulin A antibody titers post-vaccination could ...

Variant identified in Kent can cause long-term complications and prove fatal if not caught early with antibiotics ...

WASHINGTON -- With winter closing in and coronavirus case rates creeping up once again, White House chief medical adviser Dr. Anthony Fauci is warning that the vaccines' waning immunity combined with ...

The COVID-19 booster was linked to shorter menstrual cycles in adolescent girls in the 4 months following administration, particularly when teens were in their follicular phase. The vaccine did not ...

Marrissa Mullans' 18-year-old son Alfie had not been vaccinated against a deadly form of meningitis.