The B.1.1.7 coronavirus variant first identified in the United Kingdom is now the most common strain of Covid-19 in the United States, according to US Centers for Disease Control and Prevention Director Dr. Rochelle Walensky.
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The coronavirus variant first identified in the United Kingdom is now the most common strain of coronavirus in the United States, US Centers for Disease Control and Prevention Director Dr. Rochelle Walensky said Wednesday.
The CDC is advising Americans to avoid traveling to Canada because of COVID-19 variants that are circulating around that nation.
