谢邀.

HIV is non-infectious under controlled conditions, limited to sexual behavior from current research, and remains infectious by other mother-to-child and blood routes.

HIV-infected people cannot transmit HIV to their negative partners if they have an undetectable HIV viral load in their blood that has remained stable for more than six months after receiving antiretroviral therapy. In some cases, the risk of transmission from such transsexual practices can be described as "negligible", which is defined as negligible and not significant enough to be considered. Therefore, when describing the situation internationally, HIV professionals and related health educators use the following clear and unambiguous descriptions: "no real risk", "not infectious", "no longer infectious ", "zero risk", "no risk of transmission", "not infectious", "not transmittable ".

Based on the U=U consensus concept, U=U is uniformly translated as "persistently undetectable = not infectious".

In mainland China, in order to understand this concept more rigorously and avoid the risk of misinterpretation, special attention is paid to the necessary conditions for "U=U":

1. HIV-infected patients are receiving effective antiretroviral therapy;

2. HIV-infected patients have good adherence to medication;

3. HIV viral load is undetectable in HIV-infected patients and remains stable for more than 6 months.

4. "Non-contagious" is limited to sexual intercourse.

Above. Thank you.

I specialize in HIV prevention and treatment at the CDC, let me answer.

Since the first case of AIDS was detected in our country in 1985, AIDS has been one of the more serious social problems.

Let us first look at what measures have been taken to prevent and control AIDS:

1. Control of sexual transmission

As the data in the chart show, sexual transmission remains the main route of AIDS, with heterosexual transmission dominating, followed by homosexual transmission.

The main principles of interrupting sexually transmitted infections are to promote healthy sexual attitudes and behaviors, reduce unsafe sex, promote the proper use of condoms during sexual activities, and provide timely treatment for sexually transmitted diseases.

Adherence to the ABCs of healthy sexuality, which are the three areas of controlling one's sexuality, being faithful to one's spouse, and using condoms correctly.

2. Control of intravenous drug use

There are three main types of drug use, which are oral, nasal, and intravenous.

The direct cause of drug use as a mode of vulnerability to AIDS is the shared use of needles, which often have residues of contaminated blood, and the unsterilized rotation of intravenous drug users in sharing needles, leading to the spread of HIV among the drug-using population. Indirect causes are unsafe sex, sexual promiscuity and the selling of blood brought about by drug-using behaviors. At present, the State is vigorously combating drug use among the drug-using population, and has introduced "needle exchange" management for the drug-using population, which has greatly reduced the spread of HIV through the sharing of syringes for drug use.

3. Control of mother-to-child transmission

First, health education and monitoring and management should be strengthened;

Secondly, infected women of childbearing age try not to have children and avoid pregnancy;

Thirdly, medication is provided to strengthen HIV interruption and care during and after pregnancy;

Fourthly, breastfeeding is prohibited for infants and artificial breastfeeding is insisted upon;

Fifth, good follow-up and monitoring of the condition of the mother and child.

4. Various other publicity efforts, etc.

However, under controlled conditions of HIV prevention, more and more people are still being infected, why is that? Is AIDS contagious under controlled conditions or not? The answer is no. Under controlled conditions, AIDS does not spontaneously spread infection.

Why?

AIDS is transmitted in three ways: sexually, from mother to child, and through blood. However, the following conditions must be met in order to become infected:

1. To have a sufficient amount of virus

2. The medium of transmission, that is to say, there must be contact

3、To have enough time for infection

Therefore, with proper control, it is very difficult for AIDS to spread and become infected.

In addition, HIV is found in relatively high levels in semen, blood, breast milk, and vaginal secretions, making it easy to become infected.

Sweat, saliva, tears and urine, on the other hand, have extremely low levels and are not susceptible to infection, and no cases of saliva (salivary) infection have been identified.

Therefore, AIDS is not contagious under controlled conditions. However, it is important to know about preventive health care to avoid infection.

Author: Zhang Qi

Any questions about AIDS, you can pay attention to the private message consulting Oh!