Here's the good news - Hong Kong's HIV infection rate is relatively low compared with those in other parts of the world.
But teenagers are still being infected through sexual contact, and they needn't be if they were better informed and had someone to talk to, says Aids Concern, a local charity.
Youth at risk (young people who drift around or gather at public places) have their first sexual experience at an average age of 14.4 years - an unwelcome statistic for parents, says Neda Ng Hei-tung, programme manager for Aids Concern. The finding is based on a 2008 survey of 1,200 young people at risk by the Council of Social Service.
Just 20.8 per cent of those polled used a condom on their first sexual encounter.
Frontline staff at Aids Concern find that while youngsters have some knowledge about how HIV is transmitted, they mistakenly believe it mainly affects sex workers, so more education is needed.
That's why the group has collaborated with St John's Counselling Service to recruit and train teenagers at Li Po Chun United World College in Ma On Shan to act as TeenAiders - agents on a mission to raise consciousness among their schoolmates - as part of activities to mark World Aids Day on Thursday.
