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CDC: Omicron Subvariant XBB.1.5 Responsible for 88% of New COVID-19 Infections
The CDC variant tracker is not yet listing XBB.1.16, though it has been documented in the U.S.By Cecelia Smith-Schoenwalder April 7, 2023, at 5:00 p.m.
CDC: XBB.1.5 Causing 88% of Cases
A sign promoting COVID-19 testing sits along a Manhattan street on March 09, 2023, in New York City. (SPENCER PLATT/GETTY IMAGES)
Omicron subvariant XBB.1.5 is driving the vast majority of new COVID-19 cases in the U.S. but shows signs of declining, according to data from the Centers for Disease Control and Prevention.
Related: Report: FDA to Authorize Another Updated COVID-19 Booster Shot for Some
XBB.1.5 was responsible for 88% of new infections this week, according to CDC estimates. The subvariant plateaued in recent weeks and declined 1 percentage point from the previous week.
Another omicron subvariant, XBB.1.9.1, has started to show slight growth, increasing from 4% of cases last week to 5% this week as coronavirus infections and hospitalizations continue to decline in the U.S.
But the CDC is not yet listing the omicron subvariant that the World Health Organization recently said is “one to watch,” though the strain has been found in the U.S.
XBB.1.16 has been reported in 27 countries, according to WHO.