mRNA #COVID19 vaccines (Pfizer/Moderna) doing exactly what we'd expect them to do in real world settings.

Among 3975 essential workers, vaccines:

1. Significantly reduce chances of infection
2. If infected, decrease severity & duration of illness

Link: https://t.co/KRi315xTMH pic.twitter.com/dwzdMsniEp

— Isaac Bogoch (@BogochIsaac) June 30, 2021