Study: Pfizer vaccine still effective after six months; South African variant included

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.

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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