New coronavirus variant in California is increasing in prevalence

 A worrisome coronavirus variant is being found in more and more outbreaks in California — including a large outbreak in San Jose in which an air-powered Christmas tree costume led to 90 infections, according to news reports

Scientists don’t know yet whether the variant, called L452R, is more transmissible than other strains of SARS-CoV-2, the virus that causes COVID-19. But its presence in multiple unrelated outbreaks has health officials on guard. 

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