What to Know About the ‘FLiRT’ Variants of COVID-19 – University of Nebraska Medical Center

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The COVID-19 lull in the U.S. may soon come to an end, as a new family of SARS-CoV-2 variantsnicknamed FLiRT variantsbegins to spread nationwide.

These variants aredistant Omicron relativesthat spun out from JN.1, thevariant behind the surge in cases this past winter. Theyve been dubbed FLiRT variants based on the technical names for their mutations, one of which includes the letters F and L, and another of which includes the letters R and T. Within the FLiRT family, one variant in particular has risen to prominence: KP.2, which accounted for about 25% of new sequenced cases during the two weeks ending Apr. 27,according to datafrom the U.S. Centers for Disease Control and Prevention (CDC). Other FLiRT variants, including KP.1.1, have not become as widespread in the U.S. yet.

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What to Know About the 'FLiRT' Variants of COVID-19 - University of Nebraska Medical Center

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