THREAD on vaccine effectiveness:
Public Health England released its updated report on real world effectiveness of Pfizer & AZ in England this week. https://t.co/BH7Z7Md367
I thought would be helpful to explain what they found…
TLDR: pretty good! 1/9
— Christina Pagel (@chrischirp) March 20, 2021
Second and Third Thoughts
oddrops 
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