Biology, asked by ahmedhussain122624, 1 month ago

what are the vaccines available to control covid 19
covox
zinco

Answers

Answered by sjthammid
0

Answer:

covidshield or covaccine

Explanation:

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Answered by annonyadey34
0

Answer:

The Pfizer–BioNTech and Oxford–AstraZeneca COVID-19 vaccines are effective against the highly infectious Delta variant of SARS-CoV-2 — but their protection drops away over time, a study of infections in the United Kingdom has concluded

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