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Pfizer’s COVID-19 Vaccine Demonstrates Efficacy Against UK Variant


An analysis of immunization data from Israel—a global leader in COVID-19 vaccination—show that Pfizer’s COVID-19 vaccine is highly effective against the United Kingdom (UK)-based variant, B117. The evaluation of data, conducted by Pfizer, found that its vaccine was 94% effective in preventing asymptomatic infections with the novel coronavirus and 97% effective in preventing symptomatic COVID-19 illness—both mild and severe—in addition to COVID-19-related deaths. More than 80% of the tests were conducted on the B117 variant. Israel has not had many cases of the South African variant so data on efficacy against it are not available. Click here to read more.

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