A new COVID-19 subvariant is quickly spreading across the country. JN.1 is the fastest growing variant in the U.S. according to the CDC. … UCI epidemiologist Andrew Noymer says it’s sub-variant of omicron but a change to it’s spike protein seems to help the virus escape our immunity. “When there’s a mutation in the protein, it’s able to evade previous immune responses that we may have developed and therefore become a better infector. I expect JN.1 to be the dominant COVID variant both worldwide and here in California by the end of the winter.” … Noymer says the best prevention is masking and testing. [Starts at 5:00]

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