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I enjoyed your article, and the fact that different types of populations require different kinds of intervention is a tricky public health problem. The more people know about it the better.
I do have a problem with your title. "Aboriginals with STDs" would have been better, because your title plays into the stereotype that sexually transmitted diseases originated with indigenous peoples. Scientifically, the jury is still out on the subject, but throughout history and up to the present indigenous peoples have been marginalized by being called disease-ridden and promiscuous, and associating the origin of STDs with them counts as both.
This was not your intention and I'm probably nitpicking and being too PC here, but please keep this in mind for the future.