Pfizer, BioNTech say COVID-19 booster shot has high efficacy
‘It is 95.6% effective against the virus, including Delta strain’
from The Hindu - International https://ift.tt/3neZ9vV
from The Hindu - International https://ift.tt/3neZ9vV
In Sri Lanka, COVID-19 vaccination certificate will be mandatory for entry to public places
The new rule will be enforced from January 1 from The Hindu - International https://ift.tt/3GYc8KY
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