Results from UK survey are likely to fuel calls to give booster shots to the fully vaccinated.
from Current Affairs https://ift.tt/3D0dnb1
from Current Affairs https://ift.tt/3D0dnb1
Covid vaccines fight off infections but less effective against delta: Study
![Covid vaccines fight off infections but less effective against delta: Study]()
Reviewed by শ্রী শ্রী সত্যনারায়ণ নমঃ
on
August 19, 2021
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