Two new omicron subvariants have become dominant in the United States, raising fears they could fuel yet another surge of COVID-19 infections, according to estimates released Friday by the Centers for Disease Control and Prevention.
The subvariants — called BQ.1 and BQ.1.1 — appear to be among the most adept yet at evading immunity from vaccination and previous infection, and have now overtaken the BA.5 omicron subvariant that has dominated in the U.S. since the summer.
“It’s a little bit eerily familiar,” says Dr. Jeremy Luban of the University of Massachusetts, who’s been tracking variants since the pandemic began.
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