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  1. Moderna says that their vaccine is 90% effective against COVID-19, and 95% effective against severe disease for 6 months after the second dose. They also say that their vaccine is effective against the 501.V2 variant from South Africa.
  2. Moderna says its vaccine is 90% effective against COVID-19, and 95% effective against severe disease for six months after the second dose. It also says its vaccine is effective against the 501.V2 variant from South Africa.

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