Omicron BA.4.6 subvariant makes up nearly 14% of COVID variants in U.S. - CDC

Reuters

Published Oct 07, 2022 03:02PM ET

(Reuters) - The U.S. Centers for Disease Control and Prevention (CDC) on Friday estimated that by Oct. 8 nearly 14% of the circulating coronavirus variants in the United States were of the BA.4.6 subvariant of Omicron.

In the week ending Oct. 8, the BA.4.6 subvariant is expected to make up 13.6% of total COVID cases in the U.S., higher than the 12.7% prevalence last week.

The subvariant has been slowly increasing in prevalence across the U.S., even as the BA.5 subvariant of Omicron remains the dominant strain with 79.2% of the cases.

The BA.4 and BA.5 subvariants had in recent months been driving a surge of new infections globally. The U.S. recently started administration of vaccine boosters specifically retooled to target the two subvariants.