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並前往https://discoverysedge.mayo.edu/2021/12/08/new-sars-cov-2-mutations-dont-change-prevention-advice-say-experts/

New SARS-CoV-2 Mutations Don't Change Prevention Advice ...

... affect how easily the virus spreads, the severity of COVID-19 once infected, or the level of immunity from a vaccine or prior infection.

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