Poliomyelitis (polio) is a serious viral infection. It can damage the muscles and nerves. It can also be fatal.
At this time, it is very rare in the Western world. This is due to vaccination.
Polio is caused by a certain virus. It is spreads from contact with:
Someone else who has it
Infected saliva or stool
Contaminated water or sewage
The virus enters the body through the mouth. It travels into the bowels. It grows and spreads quickly. The virus can also travel through the blood and lymph. From there, it can attack and damage parts of the nervous system. This can lead to loss of muscle control and paralysis.
Interaction of Lymph, Blood Vessels, and Intestines
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