Pfizer says testing shows booster restores full protection against COVID-19

Pfizer says testing shows booster restores full protection against Pfizer and BioNTech announced on Thursday that a booster Jordan Williams TheHill

Pfizer and BioNTech announced on Thursday that a booster shot of their coronavirus vaccine restores full protection against COVID-19.

The companies said that a late-stage clinical trial found that the booster was 95.6 percent effective against symptomatic COVID-19. 

The efficacy results are the first from any randomized, controlled trial of a COVID-19 booster, they said.  ...