The Omicron Subvariants BA.4 and BA.5 Have Together Become Dominant in the U.S., the C.D.C. Estimates

June 28, 2022

(New York Times) – Continuing their rapid march across the United States, the Omicron subvariants known as BA.4 and BA.5 have together become dominant among new coronavirus cases, according to new estimates on Tuesday from the Centers for Disease Control and Prevention. As of the week ending Saturday, BA.4 made up 15.7 percent of new cases, and BA.5 was 36.6 percent, accounting for about 52 percent of new cases in the United States, numbers that experts said should rise in the weeks to come. (Read More)

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