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Omicron variant claims its first victim in the U.S.December 21, 2021 -
New COVID variant omicron claims a life in TexasDecember 21, 2021
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Omicron updates: Biden issues travel ban, new cases found in EuropeNovember 27, 2021 -
COVID variants are getting better at airborne transmission; studySeptember 18, 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 -
LA County reaches grim milestone of 1 million COVID-19 casesJanuary 18, 2021