‘The single-shot vaccine was 66% effective overall at preventing moderate to severe illness, and much more protective — 85% — against the most serious symptoms’
https://ift.tt/eA8V8J< January 29, 2021 at 07:20PM> from The Hindu - International https://ift.tt/2NIvlK5
Coronavirus | Johnson & Johnson one-dose shot prevents COVID-19, but less than some others
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