The Pfizer vaccine’s initial success holds up in wider use, a study finds.

https://www.nytimes.com/live/2021/02/24/world/covid-19-coronavirus/pfizer-vaccine-effective-israel

Wed, 02/24/2021 - 19:00

The New York Times

<p style="margin-left:20px"><a href="https://www.harvardmagazine.com/2021/01/covid-19-variants " target="_blank"> <img src="https://harvardmagazine.com/sites/default/files/HM_forWebRedesign_final.png" alt="View related Harvard Magazine article" title="View related Harvard Magazine article">Read more on this topic in <span style="font-style:italic; font-weight:600;">Harvard Magazine</span></a></p>