Pfizer-BioNTech vaccine is 91% effective, has no serious safety concerns, even six months after second dose, new findings show.
https://www.wenxuecity.com/news/2021/04/02/10451687.html
Pfizer: Vaccine 91% effective even after six months
Pfizer-BioNTech vaccine is 91% effective, has no serious safety concerns, even six months after second dose, new findings show.