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 ...

With the Delta variant in play, federal health officials are analyzing the latest numbers to look at the frequency and seriousness of COVID-19 breakthrough infections. Will we need booster shots? And ...

The FDA's new COVID-19 vaccine approval limits eligibility to high-risk individuals, diverging from previous universal recommendations. Secretary Kennedy rescinded emergency use authorizations, ...

Research links COVID vaccination to higher acute kidney injury risk within one year, though vaccinated people showed lower overall death rates from all causes.

As flu season approaches, infectious disease experts have an important message for you: If you're not vaccinated or boosted against COVID-19 yet, go ahead and get the shot. And while you're at it, go ...

Pfizer and BioNTech said Wednesday that initial lab tests show that the omicron variant partly escapes protection offered by the companies' two-dose regimen of their COVID-19 vaccine. However, those ...

RICHMOND, Va. — Virginia families seeking updated COVID-19 vaccines are encountering unexpected obstacles as federal policy changes create confusion about prescription requirements at pharmacies.

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 ...