(Reuters) – The BA.5 subvariant of Omicron was estimated to make up 77.9% of the circulating coronavirus variants in the United States for the week ended July 16, the U.S. …
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WASHINGTON – The fast-spreading BA.5 sub-lineage of Omicron is estimated to make up 65% of the coronavirus variants in the United States as of last week, U.S. Centers for Disease …