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JN.1

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New COVID variants entering the USA — all about FLiRT

The CDC is monitoring new COVID variants called FLiRT, with strains KP.2 and KP.1.1 now prevalent in the USA. These variants are highly transmissible and may not be effectively countered by current vaccines due to mutations on the spike protein. Symptoms resemble those of earlier strains, but the increased transmission and potential vaccine resistance make them a significant concern, prompting considerations for updated vaccines.

JN.1 COVID variant

JN.1 variant of COVID update

The JN.1 COVID-19 variant, a subvariant of Omicron, is rapidly spreading in the USA. While it may evade immunity from vaccines or previous infection, current vaccines appear effective against it. It poses a greater risk to the unvaccinated. Public health agencies are closely monitoring its transmission and severity to prevent potential disasters. COVID-19 remains a significant threat.

JN.1

New JN.1 COVID variant may become a concern

The COVID-19 variant JN.1, a descendent lineage of Omicron subvariant BA.2.86, is causing public health concerns although there is no current evidence of increased risk. The CDC is closely monitoring this variant, comprising 15-29% of US COVID-19 cases. Preliminary research indicates existing vaccines may protect against JN.1. However, the effect on immunity from natural infection is unknown.