What causes polio?

The so-called paralysis refers to the situation where a person's sensory or motor functions are impaired, partially or completely lost. If a child is paralyzed, the situation will be very serious. The most common manifestation is numbness of the hands and feet. In severe cases, the whole body will be numb, and normal movements will be seriously impaired. If you want to effectively treat it, you must find the cause. Common causes are as follows:

1. Source of infection

The source of infection refers to the source of virus transmission. Polio has only one source of infection, namely humans themselves. Infected babies can excrete toxins through nasopharyngeal secretions from the end of the incubation period, but in fact, virus carriers without obvious symptoms are the biggest source of infection.

2. Infectious Diseases

(1) Introduction to the virus

The infectious agent of polio is a virus called poliovirus, which mainly parasitizes in the baby's spinal cord and brain.

(2) Living conditions

It is extremely cold-resistant and can survive for about 8 years in a low temperature environment of minus 70 degrees Celsius. Its living environment is generally water, feces and milk.

(3) Annihilation Method

The polio virus is afraid of heat and can be killed by boiling it at 60 degrees Celsius for half an hour. Therefore, high temperature boiling and ultraviolet irradiation are often used. Potassium permanganate and bleaching powder can also quickly destroy it.

3. Transmission routes

The polio virus that causes polio is mainly transmitted through the feces-oral route, with physical contact being an important way of transmission. Limbs, clothes, daily necessities and toys contaminated with pathogens are all capable of transmission, and in rare cases they can also be transmitted through droplets.

4. Pathogenesis

After the polio virus enters the mouth, it will first multiply in the pharynx, tonsils, and digestive tract. If the white blood cells fail to resist, a small amount of the virus will continue to move forward, infiltrate the bloodstream, and enter the central nervous system through the blood circulation. The polio virus can cause significant pathological changes in the spinal cord and brain, causing neurological lesions.