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 ...
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.
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 ...