How long can HIV survive outside the body?

AIDS is a disease that people are very afraid of. This disease is very contagious, so once people find out that someone around them has AIDS, many people are unwilling to have contact with such a person. Those who have AIDS will also become very inferior because of this. The main reason for the occurrence of AIDS is infection with the HIV virus. This virus has a latent period in the human body. So how long can the HIV virus survive outside the body?

How long can HIV survive outside the body?

How long can HIV survive outside the body? If HIV leaves the human body, it loses its infectiousness within a few hours in a dry environment.

AIDS can only survive in living cells in blood and body fluids, and cannot survive in air, water or food. The virus can only be spread when blood or body fluids containing the virus enter directly from one person to another. Like the hepatitis B virus, it will be destroyed by the proteases in the digestive tract once it enters the digestive tract.

HIV infection rate

Unsafe sex is the most dangerous high-risk behavior that is most likely to cause HIV infection, including heterosexual and homosexual sex. There is a certain chance of HIV transmission, and the chance of infection varies depending on the sexual behavior.

1. The probability of HIV infection from female to male: 1/700-1/3000 from female to male.

2. The probability of HIV infection from men to women: 1/200-1/2000 from men to women.

3. The risk of male-to-male transmission of HIV is 1/10 to 1/1600.

Although many people do not think that the risk of contracting AIDS through sexual contact is particularly high based on the data, many other factors in real life increase the chance of AIDS transmission. For example, people infected with AIDS in the early stages or in the late stages are most contagious, with a chance of infection of 1/10-1/20, because the virus content in the body is the highest at this time. The second peak of infection is when the asymptomatic period is about to end and the clinical period is about to begin. The probability of infection is 1/100-1/200, and the probability of infection during the asymptomatic period is 1/1000.

HIV mainly attacks the body's helper T lymphocyte system. Once it invades the body's cells, the virus will integrate with the cells and will be difficult to eliminate for life. HIV can destroy the body's immune capacity, causing the immune system to fail to function, allowing various diseases and cancers to survive in the human body, and ultimately leading to the occurrence of AIDS (Acquired Immune Deficiency Syndrome).

HIV is widely present in the blood, semen, vaginal secretions, saliva, urine, breast milk, cerebrospinal fluid, and brain tissue fluid with neurological symptoms of infected people. The virus genome is more complex than any known virus gene. The incubation period of infected people is long and the mortality rate is high. Currently, there is no completely effective method for preventing and treating HIV.