When drug use became a major vector for AIDS infections, drug-prevention and AIDS-prevention efforts began to come together. Harm-reduction programs in Hong Kong, Sydney, and elsewhere have demonstrated that they can positively impact both problems very quickly.
當用毒成為愛滋病毒主要傳播管道後，「反毒」與「防治愛滋」兩個工作合而為一，包括香港、雪梨等地的經驗證明，「減害」計畫對於兩者均有立竿見影的效果。