With a world population of over 6 billion people, that means the percentage of human beings with this illness is about .0055 of the total world population.
In other words, while we may be talking about a lot of people, we are not talking about a significant number. Better than 99% of the people on earth do not have this illness, and there is a reason for that.
The reason is that it is spread in its greatest numbers by far through irresponsible sexual practices, and the greatest number of those by far in the advanced world come through homosexual practices.
By far the highest numbers of AIDS cases in the world can be seen in sub-Saharan Africa, that area of Africa below the Sahara desert, where approximately 2/3 of all the cases on earth can be found. It is highly likely that this area of the world is where the AIDS virus first found its way into the human population.
There are serious problems in this part of the world largely attributable to poverty and a lack of education, which themselves are perpetuated by the autocratic and despotic governments.
At the individual and familial level the results are involving shortcomings in personal hygiene and the overall lack of cleanliness, combined with the social problems of acceptance of multiple sexual partners at any one time.
In short, AIDS came out of Africa and remains at its strongest there, and around the rest of the world it has spread largely due to irresponsible and deviant sexual practices. Anyone who tells you anything else is simply perpetrating a fraud on you.
