Mutation of SARS-CoV2 - current variants of concern - ECDC
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The CDC updated their COVID Variant interactive map overnight, and made a helpful format change as well, allowing users to now filter results by variant type. You can, however, only look at the results for one variant at a time.
While limited testing ensures these numbers are substantial undercounts, the steady increase in detections tells us the B.1.1.7 variant - in particularly - is alive and thriving in the United States.
As noted on Tuesday, while some states (like Washington & Oregon) are aggressive testing for variants, others are only checking fewer than 1 in 1,000 positive cases.
Although the recent reduction in COVID cases and hospitalizations in the United States and around the globe is a hopeful sign, the impact of these new, more transmisible variants is just beginning to be felt, and a spring resurgence is still a strong possibility.
Modelers at the CDC estimate the B.1.1.7 variant could become dominant in the United States by March (see MMWR: Emergence Of SARS-CoV-2 B.1.1.7 Lineage — United States, Dec 29, 2020–Jan 12, 2021).
