1
Q
parts of your body that work together to fight disease
noun
A
immune system
2
Q
to make someone sick
verb
A
infect
3
Q
to keep a person or an item safe from harm or illness
verb
A
protect
4
Q
something wrong with your body that shows you are sick
noun
A
symptom
5
Q
a substance used to keep people from getting a disease
noun
A
vaccine
6
Q
a tiny living thing that causes diseases
noun
A
virus
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