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COVID-19 cases are rising in Europe. Should the US be worried about another surge?March 17, 2022 -
Immunologist 'cautiously optimistic' about omicron COVID-19 variantNovember 28, 2021 -
Omicron variant updates: Biden issues travel ban, new cases found in EuropeNovember 28, 2021 -
Fauci ‘would not be surprised’ if omicron COVID-19 variant is already in the USNovember 27, 2021 -
Why isn’t the U.S. doing more to track coronavirus variants?February 12, 2021 -
How should new COVID-19 variants change our behavior?February 9, 2021 -
COVID-19 mutations complicate efforts to slow the spreadJanuary 25, 2021 -
Moderna says vaccine protects against UK variant, but developing booster for South African mutationJanuary 25, 2021