commonly fold higher

Sex work is an important feature of the transmission dynamics of HIV within early, advanced and regressing epidemics in sub-Saharan Africa. HIV prevalence among sex workers and their clients is commonly 20 fold higher than the general population. Together, these factors may contribute to a differential in HIV transmission potential of more than 1000 times compared with lower-risk populations. Yet, in much of Africa, there is little evidence that transmission of HIV and other STIs in sex work settings has been controlled.

Sex work is an important feature of the transmission dynamics of HIV within early, advanced and regressing epidemics in sub-Saharan Africa. HIV prevalence among sex workers and their clients is commonly 20 fold higher than the general population. Together, these factors may contribute to a differential in HIV transmission potential of more than 1000 times compared with lower-risk populations. Yet, in much of Africa, there is little evidence that transmission of HIV and other STIs in sex work settings has been controlled.

Sex work is an important feature of the transmission dynamics of HIV within early, advanced and regressing epidemics in sub-Saharan Africa. HIV prevalence among sex workers and their clients is commonly 20 fold higher than the general population. Together, these factors may contribute to a differential in HIV transmission potential of more than 1000 times compared with lower-risk populations. Yet, in much of Africa, there is little evidence that transmission of HIV and other STIs in sex work settings has been controlled.