This can be answered by watching one of my videos on the failures of the national system of AIDS policy! Specific reasons:

1. AIDS is sexually transmitted, unprotected sexual contact, contact with bodily fluids, basically 100% once will be infected! Without sexual or blood contact, it is not contagious; with contact, it is definitely contagious!

2. The main thing is that our country is now for AIDS people lack of supervision, let them free activities in society, especially his or her sexual behavior is not regulated, although our country expressly prohibit prostitution and prostitution behavior, but the society is still filled with more secret prostitution, sex workers; patients will pay attention to their own spouses, to take protective measures! But AIDS patients are also people, he or they have normal physiological needs, you can not stop; but his or their casual sexual behavior is not regulated, is a crime, to the health of others is a threat, even if you are targeting prostitutes, belong to the endangerment of public safety! Prostitutes frequent solicitation behavior, there is no initiative to require guests must wear a condom, unlike the Netherlands is open prostitution, but guests must wear a condom or no service! Then the virus is invisibly spread several times over to unknowing people! And by the time the sufferer knows they have the disease, they have already had sexual contact with multiple people! This is the reason for the high incidence of AIDS among migrant workers and salesmen, and wealthy small business owners!

There is also a part of the people are white-collar workers and college students, from a young age, the lack of sex education in China, did not develop the habit of wearing a condom for sexual behavior, with the development of the economy, and more and more exchanges with foreign countries, open-mindedness, follow the trend of extramarital affairs, the phenomenon of early love is widespread, and the trend is getting more and more intense.

There is also a part of the AIDS patients who have been careless or often go out to have sex, and after realizing that they have got the disease, they become psychopathic and take revenge on the society, and deliberately go out often to have sex and infect others with the disease!

To summarize: AIDS patients are more insidious, not easy to detect, and have a high rate of infection through unsafe sex!

The chances of sexual transmission of AIDS are high, as illustrated by the changes in the causes of the growth of AIDS in our country. Therefore, in the prevention of AIDS, it is necessary to strengthen publicity and education for key groups. Especially students in large and medium-sized schools and migrant workers. Prevent the expansion of the base from leading to explosive growth. The rule of not telling the other party after the marriage test seems to be questionable.

There is no sense of protection, sexual behavior in advance, and all this knowledge, protection is responsible for their own responsibility is also responsible for others. People are not animals, can not be promiscuous.

Moth to the flame? If all prevented then the human race will be extinct, only the abolition of monogamy, reduce the number of sexual partners can be effectively controlled, mainly monogamy, the boys are not responsible for the constant replacement of girls, only to let the rapid spread of AIDS. In the old society, there were almost no sexually transmitted diseases among the Chinese people.

It's a big base. Don't you see people winning the lottery every time? [facepalm]