What is AIDS/HIV？
What is AIDS? HIV/AIDS, also called acquired immune deficiency syndrome (AIDS), is caused by human immunodeficiency virus (HIV) infection of an infectious disease, mainly through sex, blood contact or contact transmission from mother to child. After HIV infection, the immune function of the human body can be suppressed, which can lead to viral infection and the occurrence of tumor.
After the human body is infected with HIV, it causes T lymphocyte damage, resulting in persistent immune deficiency, opportunistic infection in multiple organs and rare malignancies, which leads to death.
The AIDS virus
HIV, the Human Immunodeficiency Virus (HIV), causes the Human immune system to be compromised. HIV is a slow virus that infects human immune system cells, and is a kind of retrovirus. HIV is the pathogenic virus that causes AIDS in humans and causes the human immune system to be defective.
HIV mainly attacks the helper T lymphocyte system of the human body. Once it invades the body cells, the virus will be integrated with the cells for life. HIV destroys the body’s immune ability, cause the immune system to lose effect, causing various diseases and cancer is able to survive in the human body, causing AIDS (acquired immune deficiency syndrome).
Widely exists in people infected with HIV in the blood, semen, vaginal secretions, saliva, urine, milk, cerebrospinal fluid, neurologic symptoms in the brain tissue fluid, the virus genome than any known a virus gene complex, patients, long incubation period, high mortality rate. At present, there is no effective cure for HIV.
In vitro survival time for HIV.
What is the survival time of HIV in vitro? If the HIV virus leaves the body, it will be lost in a dry environment for a few hours.
AIDS can only survive in cells that live in blood and body fluids, not in the air, in water and in food. Only when the blood or body fluids of the virus are transferred directly from one person to another. It, like the hepatitis b virus, is destroyed by proteases in the digestive tract after entering the digestive tract.
HIV infection rate.
Unsafe sex is the most dangerous high-risk behavior for HIV, including heterosexual and homosexual ACTS. There is a certain chance that HIV infection will be transmitted. Depending on the sexual behavior, the risk of infection is different.
1. The incidence of HIV infection among female males: 1/700-1/3000 for females.
2. The incidence of HIV infection among male women: 1/200-1/2000 for males.
3. Male transmission men’s risk of HIV infection: the risk probability of male transmission is 1/10 to 1/1600.
Although many people do not see the high risk of HIV/AIDS from the data, many other factors in real life increase the risk of HIV infection. For example, people with early AIDS and those with advanced AIDS have the highest infectiousness, and the chance of infection is 1/10-1/20, because the virus content is highest in the infected person. The second infectious peak is the asymptomatic phase of the impending end of the clinical period, the chance of infection is 1/100-1/200, and the risk of asymptomatic infection is 1/1000.