How is AIDS spread?

There are three main ways of transmission of AIDS:

1. Sexual transmission: homosexual transmission, heterosexual transmission.

2. Blood transmission: infection caused by artificial blood transfusion containing HIV; Non-sterilized needles and syringes are infected with HIV; * * * Using other medical devices or household appliances (such as toothbrushes and razors with infected people) may also lead to HIV infection through damaged parts.

3. Mother-to-child transmission: also known as perinatal transmission, that is, the mother infected with HIV spreads HIV to the fetus or baby before, during and shortly after delivery. HIV can be transmitted through the placenta and through the birth canal during childbirth and lactation.

According to statistics, at present, sexual transmission accounts for 56.9%, using unsterilized needles and syringes accounts for 42%, and mother-to-child transmission only accounts for 1. 1%.

When two people exchange body fluids, if one of them is HIV positive, it may be transmitted to the other. If both of them are HIV carriers, they may be cross-infected with HIV. Body fluid exchange includes their blood, semen, vaginal secretions, skin and mucous membrane injuries or inflammatory ulcer exudates. These body fluids contain a large number of HIV, which is highly contagious. Milk also contains viruses, which are contagious. There are also viruses in saliva, sweat, tears and urine, but the virus content is very small and highly contagious.