Polio or poliomyelitis is caused by poliovirus which makes polio a highly infectious disease. Polio directly invades the nervous system and cause total paralysis within a couple of hours. Once a person is exposed to polio, symptoms can surface within three to five days.
Poliovirus usually evades the immune system by firstly surviving the acidic conditions of the gastrointestinal tract and allowing the virus to infect the host by quickly spreading throughout the body. Secondly, it multiplies in an overwhelming ration and catches the immune system in an off guard situation where immune system is unable to fight back.
Read Next
How polio happens?
How we keep this article up to date:
We work with experts and keep a close eye on the latest in health and wellness. Whenever there is a new research or helpful information, we update our articles with accurate and useful advice.
Current Version