Question

$\tiny \color{silver}answer \: it \: :$
$\color{crimson}what \color{skyblue} \: is \: \color{gold}co \color{pink}vaccine \:$
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Answer 1

Explanation:

a mild form of a disease that is put (injected) into a person or an animal’s blood using a needle (an injection) in order to protect the body against that disease

Answer 2

A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.