![Booster dose of Pfizer/BioNTech coronavirus vaccine shows 95.6% efficacy in Phase 3 trial, companies say](https://cdn.newsserve.net/ONPglobe256.png)
Booster dose of Pfizer/BioNTech coronavirus vaccine shows 95.6% efficacy in Phase 3 trial, companies say
A booster dose of the Pfizer/BioNTech coronavirus vaccine was found to have a high efficacy -- 95.6% -- against Covid-19 in a Phase 3...
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