1. "there will be no"...not there is not, but there will be no? How do they know this?
He says this because it sounds better than "we've been lying to you for 20 plus years."
2. Why the heterosexual community in Africa, but don't expect it elsewhere?
It is common in sub-Sahara Africa to believe that if you rape a virgin, you will be cured of AIDS. The way to be sure you get a virgin is to rape an infant. These rapes are usually gang rapes and the rapists are often assisted by the infants' mothers. It a cultural thing (everybody knows all cultures are equal, after all-can't criticize).
What I mean by 'there won't be any epidemic,'" How do they know this?" is that they are in effect saying "no future problem"...too much an "encouraging" message to our young people. I guess we need to watch how this is "promoted" to them.
I would have much rather read "there is no;" not "there will be no." Sorry, but I tend to zero-in on the precise way words are phrased.
In some tribes it is still practiced for the grooms father to sleep with the bride the neight before the wedding. A friend did some missionary relief work in Africa about 10 years ago and came back with many stores like this one.