What is Polio and how does kill people?

Polio (poliomyelitis) is a highly infectious viral disease that can affect the central nervous system. It is caused by the poliovirus, which is spread through contact with the infected feces or saliva of an infected person.

Polio can cause a range of symptoms, from mild fever, headache, and vomiting to paralysis. In some cases, polio can lead to permanent disability or death.

Here is how polio kills people:

* Paralysis: Polio can cause paralysis by attacking the motor neurons in the spinal cord. This can lead to muscle weakness and atrophy, and can eventually result in respiratory failure.

* Respiratory failure: Polio can also cause respiratory failure by paralyzing the muscles that control breathing. This can lead to death within hours or days.

* Encephalitis: Polio can also cause encephalitis, which is an inflammation of the brain. Encephalitis can lead to a variety of symptoms, including seizures, coma, and permanent brain damage.

Polio is a serious disease, but it can be prevented by vaccination. The polio vaccine is safe and effective, and it is the best way to protect yourself from this potentially fatal disease.