Is polio contagious

summary

With the development of science and technology, although many diseases can be cured, but there are some diseases can not be completely cured, polio in the current medical conditions can not be completely cured. So many people will have questions about whether polio is contagious. Let me introduce to you whether polio is contagious.

Is polio contagious

First: oral transmission. There is a Chinese saying: "diseases come from the mouth", which means that many diseases, such as typhoid fever, dysentery and cholera, are transmitted through the mouth and enter the gastrointestinal tract. It's the same with polio. The virus is hidden in the feces of patients, the quantity is large, and the existence time is very long.

Second: droplet infection. After the virus reaches the pharynx or intestinal wall, it propagates on the mucosa of digestive tract, tonsils, lymph nodes, etc., and then invades nerve endings, along the peripheral nerves, into the central nervous system, brain and spinal cord.

Third: a small number of cases invade the pharyngeal wall and enter the central nervous system through the blood and lymphatic channels after intestinal reproduction. After the virus reaches the bone marrow, it first causes inflammation of the spinal cord gray matter at the neck or waist, mainly damaging the anterior horn, and then the posterior horn and meninges. Sometimes the virus invades the brain and medulla oblongata, causing severe lesions.

matters needing attention

Therefore, we should do a good job in personal hygiene in life, which can reduce the incidence of disease, early prevention, early detection and early treatment, which can also reduce the incidence of disease, and go to the hospital for detailed examination in time if there is any maladjustment.