**FILE** A group of Vietnamese sex workers are given a class on safe sex by members of an HIV/AIDS outreach network at a karaoke club in Ho Chi Minh City, Vietnam, on Oct. 12, 2009. (Associated Press)
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**FILE** A group of Vietnamese sex workers are given a class on safe sex by members of an HIV/AIDS outreach network at a karaoke club in Ho Chi Minh City, Vietnam, on Oct. 12, 2009. (Associated Press)
