Poliomyelitis is an infectious viral disease caused by wild poliovirus (as opposed to the polio vaccine virus used in oral vaccines).

It is a very contagious disease that can be fatal. The virus spreads from one person to another mainly through the fecal-oral route or less frequently through the ingestion of contaminated water or food.

Fever, fatigue, headache, vomiting, stiff neck and pain in the limbs are the first symptoms.

The polio virus invades the nervous system and causes paralysis of the muscles, reaching a major part of the spinal cord (the anterior cords of the spinal cord), where the motor roots of the nerves pass. Between 5 and 10% of paralyzed patients die when their respiratory muscles stop functioning.

Polio is being eradicated today thanks to the large vaccination campaigns that have been carried out all over the world for decades, whether in industrialized countries or in developing countries.

Polio is now found in only a dozen countries and especially in India, Pakistan, Afghanistan, Niger and Nigeria. Some cases persist in other African countries.

Poliomyelitis mainly affects children under five.

Since there is no treatment, prevention is the only option. The vaccine, as well as its recalls, gives the child a lifelong protection.

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Read also :

> Infantile diseases
> Baby vaccination
> Vaccination of the child
> Mandatory vaccination Diphtheria Tetanus Polio (DTP)

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