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Axios
Axios
Health

CDC: New Omicron variants gaining ground

New Omicron strains capable of evading immune protections and causing breakthrough infections now account for more than 21% of total COVID cases in the U.S., according to updated CDC figures.

Why it matters: The virus continues to evolve, with the BA.4 and BA.5 lineages accounting for a bigger proportion of the approximately 105,000 new daily cases.


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