AstraZeneca, Moderna, and Pfizer’s vaccines prevented COVID-19 in trials. Here’s how the shots’ efficacy rates compare to vaccines for other viruses.
3 coronavirus vaccines so far seem to prevent COVID-19. Here’s how their efficacy compares to vaccines for flu, measles, and more.
More Stories
Brazil rolls out COVID-19 vaccination plan
First Pfizer COVID-19 vaccine shipments to be delivered to US distribution sites starting Monday
CDC advisory panel recommends Covid-19 vaccine for people 16 and over