“…A number of contextual, biomedical, and behavioral factors, which can speed up HIV prevalence, are widespread in Bangladesh. These are: sharing common borders with India and Myanmar, which are high HIV prevalent countries; close contact among different "core" populations (sex workers, injecting drug users), "bridging" populations (rickshaw pullers, long-distance truckers, and increasing numbers of men having sex with men), and the general population; existence of a sizeable (approximately 105,000) population of sex workers (SWs) with high rate of client contact per week and low use of condoms; prevalence of other sexually transmitted infections (STIs) including highly active syphilis among different population groups, particularly SWs; increased number of intravenous drug users with high rate of needle sharing; lack of biomedical safety, i.e., lack of HIV screening in blood transfusion and high contribution of professional blood donors to the total blood supply of the country, of whom many are injecting drug users; transport workers, mostly long-distance truckers who are living away from their wives; and high rate of international migration of labor to and from countries with HIV epidemics [3,5,10,11,[14][15][16][17][18][19].…”