Contact tracing revs up in some states as omicron reaches US; hospitals strain due to virus surge-
By PTI WASHINGTON: The arrival of the omicron variant of the coronavirus in the U.S. has health officials in some communities […]
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Contact tracing revs up in some states as omicron reaches US
The arrival of the omicron variant of the coronavirus in the U.S. has health officials in some communities reviving contact