The AIDS infection rate is something like 40 percent, I believe, for the sub-sahara region. In the US, if a girl goes out with a guy, it is almost a given that they are having a sexual relationship. Where have you been?
No it is not. The infection rate in the southern African country of Zimbabwe is unofficially estimated as as much as 25%, the highest in the world. It is also high in other far southern African countries. The farther north you move, roughly speaking, the lower the infection rate is. (Sudan is relatively far north, with some Arabs and some darker peoples.)
Africans are not perfectly interchangeable.
My direct question was whether the inter-racial dating aspect of this is not your primary concern.
If you find this question / conclusion unfair... I suggest it illustrates my point.