NEW YORK/TOKYO -- The omicron BA.2 subvariant of the coronavirus is rapidly spreading across much of the world, now accounting for a majority of new COVID-19 cases in the U.S. after overrunning some countries in Asia and Europe.
Coronavirus
Omicron BA.2 gains dominance from India to U.S.
Coronavirus subvariant's rapid spread has not produced a spike in deaths
A woman takes a COVID-19 test in New York City. The BA.2 subvariant is now responsible for more than half of new cases in the U.S. © Reuters
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