What is new Covid variant FLiRT, is it dangerous, and what are the symptoms?

The FLiRT variant, a group of new Covid-19 variants belonging to Omicron's JN.1 lineage, is rapidly spreading in the US. Variants KP.2 and KP 1.1, considered more infectious than previous Omicron variants, are causing concern. Experts warn of a potential new wave of infections in the summer. Symptoms of FLiRT remain similar to other variants. Vaccination and preventive measures are advised.

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