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jan 1, 1908 - Polio

Description:

Its caused by a very small virus. The virus affected somone who is infected. The virus spreads from feces into water which is contagious. The two avaible vaccines are OPV- oral polivirus and IPV-inactiviated polivirus vaccine.

Added to timeline:

14 Dec 2018

Date:

jan 1, 1908
Now
~ 116 years ago