More Omicron Variants Gain Ground U.S., According to C.D.C. Estimates – The New York Times
More Omicron Variants Gain Ground U.S., According to C.D.C. Estimates – The New York Times
The Omicron subvariants known as BA.4 and BA.5 now represent 13 percent of new coronavirus cases in the United States, up from 7.5 percent a week ago and 1 percent in early May, according to new estimates from the Centers for Disease Control and Prevention.
The spread of the subvariants adds more uncertainty to the trajectory of the pandemic in the United States, where current case counts are likely to be a significant underestimate. But whether it leads to a major new wave of infections, or spikes in hospitalizations and deaths, remains unclear, scientists cautioned.