Health, 08.11.2019 05:31 jwmiciche7367

Will mark brainliest

what is a vaccination? it's not a

a) an injection of a chemical formula that forms a shield around bacteria

b) an injection of a full-strength form of bacteria that causes a disease

c) an injection of weakened bacteria that creates immunity to a disease

d) an injection of blood taken from another person who has no bacteria

Answers: 2

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Will mark brainliest

what is a vaccination? it's not a

a) an injection of a...