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,” ...

CDC data showed in the four weeks ending on January 29, 0.33% of nearly 4,000 sequenced tests came back as the BA.2 variant--about 13 tests. The majority of samples sequenced as omicron (96.8%), with ...

The US Centers for Disease Control and Prevention strengthened recommendations for booster doses of coronavirus vaccine Monday, saying all adults should get boosted six months after the second dose of ...

The omicron variant led to a sharp increase in pediatric COVID hospitalizations, a new CDC study found. The study tracked coronavirus related hospitalizations in babies and youth age 0 to 4 from March ...

NEW YORK (WABC) -- There are rising concerns about the new omicron variant, as cases have now been confirmed in more than half the U.S. Early anecdotal reports seem to indicate those infected are ...

A new Centers for Disease Control and Prevention study says booster shots of Pfizer's and Moderna's COVID-19 vaccines proved vital in keeping additional Americans out of the hospital as the omicron ...

NEW YORK (WABC) -- As COVID cases continue to drop, the CDC could update its mask guidelines as early as this week. Dr. Anthony Fauci warns it's still risky, but most of the country isn't waiting.

NEW YORK (WABC) -- The CDC has new guidance on COVID-19 vaccines, advising Americans who have only received one dose so far to space out their shots. The CDC now recommends that most people over the ...

Doctor holding a positive result for COVID-19 with test kit for viral disease COVID-19 2019-nCoV. automation More than half of U.S. states are reporting "very high" levels of COVID activity as the ...