Press-Telegram (Long Beach)

Brazilian strain

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Known as P.1, this variant was identified in January when Brazilian travelers arrived in Japan. As with the South Africa variant, scientists are concerned the Brazilian strain may be better at tricking antibodies, meaning vaccines may be less effective.

There is also evidence that people who had already recovered from COVID-19 could be reinfected by the Brazilian strain. That appears to be happening in the Brazilian city of Manaus, which was hit so hard last spring with a different variant that some scientists speculated the city might have achieved herd immunity, where a large percentage of the population has become immune and the virus begins to have trouble spreading. But then P.1 struck earlier this year, infecting people who had already been sick.

So far, at least 13 cases have been reported in at least seven U.S. states. Stanford scientists have found another Brazilian variant, known as P.2, in the Bay Area, and Los Angeles County’s Public Health Department Director Barbara Ferrer said Wednesday that officials also identified a case. It’s different from the P.1 variant causing widespread concern but has not been identified yet in California,

according to the CDC.

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