Another aspect of the drugs-and-sex nexus is that some women engage in prostitution in order to support their drug habits. They thereby become highly mobile sources of infection, and are a major challenge for the prevention net.
不過，相對於這些性伴侶固定的族群，一些為了缺錢買毒而下海賣身的女性更成為移動的病毒散佈者，也是更危險的防疫缺口。