Question

how to make covid vaccine

Answer 1

Explanation:

aapni imunnity badhao.....vaccine banana tumhara kaam nahi hai ......support lockdown

Answer 2

Answer:

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When a disease is new, there is no vaccine until one is developed. It can take a number of years for a new vaccine to be developed.

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hope it helps you dear(◍•ᴗ•◍)❤

PLs mArK As bRaInLIeST deAR❤️