'Mu' variant taken seriously, but not a yet threat -Fauci

"We're keeping a very close eye on it," Fauci said of the Mu variant, but stressed the Delta variant was still dominant in the United States.

The Mu variant, Fauci added, "has a constellation of mutations that suggest it would evade certain antibodies...but there isn't a lot clinical data to suggest that."

"Bottom line: we're paying attention to it. We take everything like that seriously, but we don't consider it an immediate threat right now."

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