Answer:
Getting it or something that is proven by scientists that will cure it.
Step-by-step explanation:
Something I've learned is if you get a virus and it goes away your body will build an immunity.
Vaccines work in much the same way. They expose your body to an antigen that trains your immune system to fight that germ in the future. Because vaccines contain weakened or killed versions of viruses, you become immune without getting sick.
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