CDC: BA.2 subvariant makes up one-third of COVID-19 cases in the U.S.
The BA.2 subvariant now makes up an estimated 34.9% of COVID-19 cases in the U.S., according to the most recent data from the Centers for Disease Control and Prevention. That's up from the estimated 23.1% of new cases reported a week ago. BA.2 is a subvariant of omicron and is more transmissible than omicron. The number of new cases in the U.S. continues to decline; the seven-day moving average was 27,786, as of Sunday, according to the CDC. However, cases are rising in many parts of the world, including China and several European countries.
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