There’s growing evidence that the first dose of the Pfizer-BioNTech’s COVID-19 vaccine is highly effective. As Abigail Bimman explains, that could make some provinces shift their inoculation plans.
- Single dose of Pfizer vaccine may reduce transmission, early U.K. study suggests
- A 3rd dose of Pfizer? Company testing booster of COVID-19 vaccine in new trial
- COVID-19 vaccines cut risk of severe infection, Scotland study shows