Option, does not belong to the route of AIDS transmission is ().

In the next option, what does not belong to the route of AIDS transmission is the spread of air droplets.

Extended data:

AIDS is a very harmful infectious disease, which is caused by HIV infection. HIV is a virus that can attack the human immune system.

It takes CD4T lymphocytes, the most important cells in human immune system, as its main target, and destroys them in large quantities, making human body lose its immune function. Therefore, the human body is prone to various diseases and malignant tumors, and the mortality rate is high. The average incubation period of HIV in human body is 8 ~ 9 years. In the incubation period of HIV, infected people can live and work for many years without any symptoms.

Historical background:

Studies show that AIDS originated in Africa and was brought to the United States by immigrants. On June 5th, 198 1, the US Centers for Disease Control and Prevention published a case report of 5 AIDS patients in Morbidity and Mortality Weekly, which is the first official record of AIDS in the world. In 1982, this disease is named "AIDS".

Soon after, AIDS quickly spread to all continents. During the period of 1985, a foreigner who traveled to China fell ill and died in Peking Union Medical College Hospital shortly after being hospitalized, and was later confirmed to have died of AIDS. This is the first case of AIDS in China.

Disease symptoms:

It takes several years, even 10 or even longer, for an HIV infected person to develop into an AIDS patient. Because the body's resistance is extremely reduced, there will be many infections, such as herpes zoster, oral mold infection, tuberculosis, enteritis, pneumonia, encephalitis caused by special pathogenic microorganisms, candida, pneumocystis and other pathogens. Malignant tumors often occur in the later stage, and long-term consumption will occur, leading to systemic failure and death.

clinical picture

Most of them are young and middle-aged, and 80% of them are in 18 ~ 45, which is the age when sexual life is more active. After being infected with AIDS, they often suffer from some rare diseases, such as pneumocystis pneumonia, toxoplasmosis, atypical mycobacteria and fungal infections.

After HIV infection, there may be no clinical manifestations in the first few years to more than 10 years. Once AIDS develops, patients will have various clinical manifestations. Generally, the initial symptoms are like the common cold and flu, and there may be general fatigue, loss of appetite, fever and so on. With the aggravation of the disease.

Symptoms are increasing day by day, such as candida albicans infection in skin and mucosa, herpes simplex, herpes zoster, purple spots, blood blisters, ecchymosis and so on; In the future, it will gradually invade the internal organs, and there will be persistent fever for unknown reasons, which can last for 3 ~ 4 months; Cough, shortness of breath, dyspnea, persistent diarrhea, bloody stool, hepatosplenomegaly and malignant tumor may also occur.

Clinical symptoms are complex and changeable, but not every patient has the above symptoms. Dyspnea, chest pain, cough, etc. Often occurs when the lung is invaded; Invasion of gastrointestinal tract can cause persistent diarrhea, abdominal pain, emaciation and weakness. It can also invade the nervous system and cardiovascular system.