Why were people who contracted Polio put into quarantine?

Answer:before polio vaccines were available, polio outbreaks caused more than 15,000 cases of paralysis each year.

polio outbreaks in the U. S. increased in frequency and size, crippling an average of more than 35,000 people each year

Explanation:it was very contagious and didn't show signs or symptoms from the start when you got it.

because polio is a highly contagious disease that that be passed very quickly with no symptoms at the star but when there are symptoms doctors of specialists can usually find out and quarantine you so no one else gets it