Can repeated use of needles cause HIV infection?

Can repeated use of needles cause HIV infection?

AIDS is a very harmful infectious disease, caused by infection with HIV, a virus that attacks the body’s immune system. It takes the most important CD4T lymphocytes in the human immune system as the main target of attack, destroys the cells in large quantities, and makes the human body lose immune function. The transmission of AIDS is generally sexually transmitted, and direct contact with the blood, semen and milk of AIDS patients can be infected with AIDS. Do not reuse needles! If the needle has been used by someone living with HIV, then there is a high chance that you will get infected.

Statistics show that the chance of contracting AIDS from needlestick wounds is about 0.3%. However, the infection rate of 0.3% is only a statistic, and the specific probability of HIV infection is affected by many factors, including needle exposure time, needlestick wound depth, and needle virus amount.

1. Needle exposure time: In a short period of time, if a needle is pricked in a healthy person, HIV may be exposed to T lymphocytes in the blood of healthy people, find a new host to cause infection, and have a certain chance of contracting AIDS. However, if the needle is exposed to the air for a long time, and the environment is dry and the temperature is high, the virus will be quickly inactivated and the chance of contracting AIDS will decrease;

2. Needle puncture depth: If only the epidermis is punctured, the possibility of blood contact is small, and the chance of infection will decrease. However, if the dermis is pierced even deeper, the possibility of blood contact becomes greater and the probability of infection will also increase;

3. How much needle virus: If the virus on the needle contains more HIV, there will be more virus entering the body, increasing the possibility of contact with blood, and the probability of infection is relatively high. If there is less HIV on the needle and less virus entering the body, the chance of infection is relatively low.

There is a certain risk of HIV infection with acupuncture wounds, so once this situation occurs, you can first squeeze locally, squeeze out and rinse the local blood as much as possible, and then use sterilization and virus-killing disinfectants to rub locally.

Of course, although AIDS is transmitted through shared syringes, it cannot be simply understood that AIDS can be transmitted through needles.

First, if the needle itself is hygienic, clean and sterile, and has not been exposed to the blood, semen, vaginal secretions, chest and ascites of AIDS patients, that is, if the needle does not contain HIV, it will not cause AIDS transmission.

Second, if the needle comes into contact with blood or other secretions or body fluids containing HIV, if the needle is used to puncture our skin, it may cause AIDS infection, but relatively speaking, the probability of this infection is generally believed to be about 0.3%.

Therefore, the most critical thing to prevent the spread of AIDS is to avoid unsafe sex and avoid sharing needles with others. After use, please put the needle in the sharps box in time and do not use it twice, even if you can ensure that the needle is only used by you, it may cause wound infection and cause related diseases. Therefore, the best way to dispose of it is to put the needle in the sharps case immediately after use.

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