One cause of this is that most of Thailand's sex workers enter the industry as a result of enslavement by prostitution ring organizers. Most of these women become sex slaves as early as eleven or twelve years old and are unable to escape from it. They typically are uneducated women, and for cultural reasons they are prone to submit to the will of the male customer and therefore would be very unlikely even to suggest that a client should use a condom. Blood tests and medical care usually are unavailable to these sex slaves because that would take money from the prostitution ring leaders. Of course much of the advertising that attracts customers to these sex tours presents a very different image.
HIV/AIDS seems here to stay. The best hope is that medical science can continue to find ways to attempt to constrain the disease before it mutates into more virulent strains. According to some data this already is occurring with the SIV strain which defies treatment with any medication. It may require such a drastic situation to educate the generation that does not recall the horrors of the first decade of HIV/AIDS that their entire lives can be affected by one bad decision on one occasion.