The CCR-5 mutation is what the scandinavians have and they also had a trading post " The ost India company " in that part of africa and would explain why small part of the population there still have the immunity cus they probably mixed some with the natives ;)
Reasent discovery is that 20% of the people living in the scandinavian contrys and 20% of the population in the northern part of uk has that imunity.
Braketrough news is that due to a transplant to a patient suffering from blood cancer that also had aids and got a donation from a imune giver is...