The highly transmissible BA.2 Omicron variant comprised more than half of COVID-19 last week, the Centers for Disease Control and Prevention said on Tuesday, as experts say they believe a new wave of coronavirus cases in the US is unlikely infections.

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BA.2 cases made up almost 55 percent of infections for the week ending on March 26, according to new weekly data released by the CDC on Tuesday.

That’s up from the 39 percent of cases the BA.2 variant accounted for during the week ending in March 19.

The variant has also become the dominant COVID-19 strain worldwide.

Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, told The Washington Post last week that unless “something changes dramatically,” the US is unlikely to see a “major surge.”

Daily coronavirus infections are on the rise in some states, with overall cases across the US plateauing.