There were 20 million intravenous drug users and men who had sex with men - both bisexuals and homosexuals.
In addition, there were 50 million women at risk because they were the wives or girlfriends of men who engaged in high-risk behaviour, she added.
She warned that in many Asian countries, the HIV/AIDS prevalence was rising among men who engaged in sex with other men.
In some Asian countries, such men may continue to have sex with their wives and other women, she added.
ADB special adviser Ian Anderson said that while the relative number of HIV/AIDS infected people in the Asia-Pacific are small, they could have a serious effect as most of them are in their most economically-productive years.
"Because it is relatively small, this is the time to keep it small. So we won't have to put the genie back in the bottle later," he said.
Source-AFP
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