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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

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Answer:

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

Explanation:

A vaccination is a treatment which makes the body stronger against a particular infection. Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection.

Answer:

c an injection of weakend bacteria that creates immunity to a disease