Fact check: Merck discontinues COVID-19 vaccine work over weak immune response https://t.co/uzKPMJyJKe
— stowey don allen (@donstnath) February 15, 2021
from Twitter https://twitter.com/donstnath
February 15, 2021 at 12:03AM
http://twitter.com/donstnath/status/1361224509546762240
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