Prostitutes and casinos exist in many areas in the world, in mainland there's unlicensed prostitutes and casinos, I mentioned them only for my curiosity.

Methods After getting the informed consent from the CSWs, one by-one questionnaire interview and the specimen for STD test were conduct.

Conclusion Applying indirect division methods could estimate the size of male clients who made sex trade with street-based FSW simply and quickly.

Conclusion The percentages of HIV vcr knowledge among FSWs is low, and comprehensive health education is urgent to improve vcr and to control sexual transmission of AIDS/STD among FSWs.

Conclusion The data show that female sex workers had poor AIDS knowledge and low condom use. The popularization of AIDS knowledge and interventions need to be strengthened in the city.