A small number of infected people - between one in a thousand and one in a hundred - develop more serious problems where polio invades the nervous system. This causes paralysis, usually of the legs.
Polio used to be one of the most feared childhood diseases. It can attack the nervous system and - in just a few hours - leave someone paralysed. If it paralyses the chest muscles, people are ...
So without the anti-polio antibodies, the virus would multiply and spread throughout the body. Dr. Salk: That's right. The virus makes its way to nerve cells of the central nervous system ...