ExpiredDustyMuffin

In order for it to spread, either the man or the woman would have to have it in the first place. However, the disease is largely contained in the gay community due to the nature of how it would have to spread and who it would naturally spread to if it did.

While it's certainly not a gay disease, the largest group that catches it is the gay community. Since men are typically solidly gay if they are gay (as opposed to bisexual) the disease is generally contained in the community. Thus, it's more unlikely that either party in a heterosexual relationship would have it in order to spread it.

You'll notice though in populations with high male incarceration rates and drug use, that heterosexual men and women go on infecting their female or male partners. I don't have the study on hand, but I remember reading that one of the largest HIV groups that's infected are black single mothers.

How much free time to explore do you get? Are you able to take a few weeks off throughout the year or is the idea that you're figuratively chained to your assignment?