How did AIDS come from?

How did AIDS come from? Aids is caused by HIV infection, through sexual transmission, blood transmission and mother-to-child transmission.

How did AIDS come from?

How did AIDS come from? The emergence of AIDS is due to infection with HIV. Once the virus invades the human body, it invades lymphocytes through blood, replicates the virus in cells, and causes lymphocyte death. After a large number of replications, the virus continues to infect other lymphocytes, eventually leading to lymphocyte depletion and seriously damaging human immune function.

There are three main ways of transmission of AIDS, including sexual transmission, blood transmission and mother-to-child transmission.

1. Sexual contact transmission: including sexual contact between the same sex and the opposite sex. Anal sex and oral sex are at greater risk of infection.

2. Blood transmission: importing blood or blood products contaminated by HIV, or intravenous drug users using unsterilized needles and syringes contaminated by HIV.

3. Mother-to-child transmission: HIV-infected mothers transmit the virus to the fetus or baby before, during and shortly after delivery. It can be transmitted through the placenta, or through the birth canal during childbirth, or through breastfeeding.

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How much does the pre-pregnancy physical examination know about the origin of AIDS?

Aids originated in Africa and was later brought to the United States by immigrants. Human HIV may have originated from wild chimpanzees in Africa. But so far, scientists still can't figure out how HIV spreads from chimpanzees to humans. Most scientists believe that it is likely that human beings were bitten by chimpanzees infected with the virus, or accidentally infected with the virus when slaughtering chimpanzees. So the HIV virus mutates in the human body and evolves into HIV virus to infect others. Most importantly, this virus is significantly more deadly to humans, and chimpanzees are generally infected with HIV.