BA. 2, the highly contagious omicron subvariant, is now the dominant COVID-19 strain in the U.S., according to data from the CDC. Numbers show the subvariant, also known as “stealth omicron,” ...

The Centers for Disease Control now says all adults "should" get a COVID-19 booster shot once they become eligible. The agency changed its previous guidance, which said some adults, who are considered ...

With the latest COVID-19 variant leading to record numbers of cases worldwide, a top infectious disease expert says the virus is undergoing a major shift. Dr. Robert Redfield, the former director of ...

NEW YORK (WABC) -- Amid concerns about the rapidly spreading omicron variant, Dr. Anthony Fauci is reminding Americans that we already have the tool to fight the spread. "Our booster vaccine regiments ...

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Official COVID-19 case metrics severely undercount the true number of infections, leaving the United States with a critical blind spot as the most transmissible coronavirus variant yet takes hold. The ...