The CDC data shows the estimated biweekly prevalence of the most common SARS-CoV-2 lineages circulating in the U.S., based on more than 40,000 sequences collected through the agency’s national genomic surveillance since Dec 20.
For the weeks Jan. 3 to March 27, the CDC estimates these three variants each account for nearly 50 percent of all U.S. COVID-19 cases.
B.1.1.7 (first identified in U.K.): 44.1 percent
P.1 (first identified in Brazil): 1.4
B.1.351 (first identified in South Africa): 0.7
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