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WNYT Staff
Created: April 01, 2021 07:31 PM
Pfizer and BioNtech say a new analysis from a Phase 3 study shows their vaccine is still highly effective after several months, including against the South African variant.
The companies say a new analysis included more than 44,000 people. There were 927 symptomatic cases of COVID-19, 77 were in the vaccinated group.
That means the efficacy rate is 91.3%.
It was also highly effective against severe disease, and no serious safety concerns were observed.
Sarah Kelson receives her Pfizer vaccine Thursday, March 25, 2021, in Spanish Fork, Utah.
The companies also say the vaccine appears to be 100% effective in South Africa, where the South Africa strain is dominant.
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