FLiRT (Fresh Lineage of Rapid Transmission) is a group of COVID-19 variants characterized by mutations (F456L, R346T).

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FLiRT (Fresh Lineage of Rapid Transmission) is a group of COVID-19 variants characterized by mutations (F456L, R346T) that increase transmissibility and potential immune evasion. White text on blue.

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Photo credit: © i-am-helen / Alamy / Afripics
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