HIV is mainly contained in the carrier's blood and semen. But vaginal sex with a carrier itself is not so much risky because a vagina is tough to physical damage. In contrast, anal sex is highly risky behavior for the infection. Thus, men who have a sex with a man are at risk of infection with HIV. The fact such people tend to enjoy sex with multiple partners is also a risk factor.
Illegal drug users are also exposed to the infection. They share the needle to inject the drugs.
Previously, HIV infection was hard to prevent. But recently, some good solutions are available. Pre-exposure prophylaxis (PrEP) is a protective agent against HIV infection. By taking this pill, you can avoid being attacked by HIV, perhaps.
In recent studies, PrEP has become popular among people at high risk.
Reuters: HIV prevention pill reaching more people who need it
Illegal drug users are likely not to be concerned with their health. It can hinder the spread of PrEP. On the other hand, most of them have user's network to get the information. It is preferable if they can learn the threat of HIV and the good ways to prevent infection. Also in Japan, some websites for enlightenment were launched recently.
Some people claim that the protection of illegal drug users is no use. I am clearly against this idea. Our society includes drug users who should be cared. In addition, prevention of them from diseases will be not only for their health but also for our safety.
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