AIDS is a terrible chronic disease caused by the invasion of HIV, the human immunodeficiency virus, which destroys the body’s immune function and causes a variety of incurable infections and tumors in the body, eventually leading to death.
There are three ways of transmission of HIV: sexual contact, blood transmission and mother-to-child transmission. About three-quarters of HIV infections worldwide are transmitted through sexual means. HIV is very fragile outside the human body and can only survive for hours to days at room temperature outside the body, and can be killed directly with soap, hand sanitizer, disinfectant water, hot water, and bleach. In the daily air, water, sneeze, public toilets, public utensils, etc. are not spread AIDS.
Generally speaking, a healthy person can survive from HIV infection to death in 2-20 years. The length of survival depends on the amount of HIV virus introduced into the body, personal health differences, and whether the patient is treated for the disease.
1.Blood transmission: If the human body imports blood contaminated with HIV, the chance of infection is 100%, and the patient will develop the disease in 4-5 years and die 6-18 months after the disease.
2.Mother-to-child transmission: Most children infected with HIV develop the disease at the age of 5, and it is extremely rare for them to survive until they are over 10 years old.
3. Sexual transmission: Healthy people infected with HIV through sexual intercourse generally survive for about 10 years.
The course of AIDS is very long, generally divided into the following four stages 1, the acute infection period, also known as “window period”. Patients have fever, fatigue, diarrhea and other symptoms, which will disappear naturally in 2-3 weeks.
2. The “asymptomatic infection period”. This period is the longest, accounting for about 80% of the entire course of the disease, and patients in this period are called “HIV carriers”. The patient appears to be no different from a normal person, but the immune system in the body is fighting against the HIV virus.
3.”Pre-AIDS”. At this time, the infected person has already appeared the basic symptoms of AIDS, but the degree is mild and the immune function has not yet completely disappeared. When the immune cells in the infected person’s body are unable to fight against the AIDS virus, the person enters the final stage of the disease.
4. It is called “AIDS stage” or “late clinical stage”. At this time, patients are called “AIDS patients” and are prone to various infectious diseases. If anti-HIV and anti-opportunistic infection treatment is not done, most people will die within six months to one and a half years.