g. southern Africa
And by the way, even including men having sex with men, HIV
isn't all that common in
the US. It is estimated that there are about 60,000 new infections per year. That number is terrible in some ways and certainly far too high, but it compares with millions for most STDs (herpes, HPV, chlamydia, trichomonas), and with far higher rates for any number of cancers, deaths from accidents, etc.