Omicron subvariant infections double each week in U.S.

0 Comment(s)Print E-mail Xinhua, March 9, 2022
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WASHINGTON, March 8 (Xinhua) -- Cases of a highly transmissible Omicron subvariant were doubling in the United States each week over the past month, according to the data updated Tuesday by the U.S. Centers for Disease Control and Prevention (CDC).

The variant, BA.2, was responsible for 11.6 percent of coronavirus infections in the country in the week ending March 5, according to the CDC estimates.

The variant accounted for only 1 percent of new cases in the week ending Feb. 5, rising to 2.2 percent in the week ending Feb. 12, and 3.8 percent in the week ending Feb. 19, and 6.6 percent in the week ending Feb. 26, CDC data showed.

New lab and animal experiments suggested that BA.2 may be capable of causing more severe disease than the original Omicron strain. Enditem

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