What is polio?
Polio is a dreaded disease which usually happens in children. It is caused by a virus. The virus enters the mouth from air and then goes into the blood through the intestines. The virus then passes into the nerves which take it to the central nervous system and brain.
The virus damages the cells of the spinal cord making the muscles paralyzed. If the lower part of the spinal cord is affected, the patient gets paralyzed and gets immovable, while if the upper portion of the spinal cord is affected, the patient finds difficulty in breathing and may even die. It is, hence, very important for the children to have oral polio vaccine.
