With the rise of omicron came the fall of long-lasting protection from reinfection with the pandemic coronavirus SARS-CoV-2, according to a study published in Nature. Using population-wide data from ...

In October, the Centers for Disease Control and Prevention recommended that high-risk adults get a second updated Covid vaccine to bolster their protection against the virus. No other vaccines are ...

New data released Thursday by the Centers for Disease Control and Prevention suggest that the most recent Covid-19 booster offers about 54% percent protection against infection with the virus. A study ...

DEAR DR. ROACH: My daughter was recently visiting and tested positive for COVID. Since my last COVID vaccine was eight months ago, I searched for how much protection I still had and understood the ...

WASHINGTON — The U.S. approved updated COVID-19 vaccines Monday, hoping to rev up protection against the latest coronavirus strains and blunt any surge this fall and winter. The Food and Drug ...

(CNN) — A new Covid-19 vaccine is available — and recommended — for everyone ages 6 months and older, and experts say it’s best to take advantage of the protection it provides sooner rather than later ...