Similar term(s): Polio.
Poliomyelitis (polio) is a highly infectious
viral disease, which mainly affects young
The Poliovirus is transmitted through contaminated food and water, and
multiplies in the intestine, from where it can invade the
Many infected people have no symptoms, but do excrete the virus in their
faeces, hence transmitting infection to others.
Initial symptoms of polio include fever, fatigue, headache, vomiting,
stiffness in the neck, and pain in the limbs. In a small proportion of cases,
the disease causes paralysis, which is often permanent.
Polio can only be prevented by immunization.