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The so-called U.K. variant continues to spread around the U.S., with cases identified in all but eight states, Biden administration officials said in a briefing on Wednesday.
There are now 1,277 cases of the B.1.17 variant in 42 states, including one case of the E484K escape mutation first identified in the U.K., which was previously seen on the so-called South African variant, which has been shown to impact certain COVID-19 treatments, such as convalescent plasma.
In addition, 19 cases of the B.1.351 (South African) variant were found in 10 states, and three cases of the P1 (Brazilian) variant were found in two states.