5:57pm PST - January 17th, 2021

One big unknown regarding all of the vaccines in development has been the duration of protection against coronavirus. Big news came earlier this month. Moderna's CEO Stephane Bancel said the vaccine might offer protection for "a couple of years." https://t.co/zmfouvlwDQ

0 retweets   0 likes  - NPHIC (@nphic)