Polio is an infection that can affect the whole body, but always affects the nerves and muscles.
Polio is caused due to a virus infection.
The Polio virus is transmitted via ingestion of a virus commonly found in human feces and sewage. In areas where human sewage is allowed to contaminate the drinking water or wells/pools/tanks, the virus can infect older children and adults who come in contact with these waters when swimming, bathing, or ingesting. It is often transmitted from one person to another by the fecal (i.e. from feces) to oral (mouth) route.
The virus may enter through the nose or mouth, then invade the intestine, where they move into intestinal cells and multiply into thousands of new virus particles. These are then excreted through the stool (for weeks), thereby renewing the cycle and endangering the entire community with the risk of infection.
Moderate infection of brain and spine
Severe infection of brain and spine
In most cases, the patient may not feel any symptoms. In other cases, symptoms are
Flu like symptoms
Symptoms of mild infection
Muscle tenderness and pain in various parts of the body such as the calf (behind the leg)