There are two reasons for no AIDS vaccine: 1) it’s very hard to make a vaccine for a virus that targets the immune system and 2) it’s very hard to make a vaccine for a virus that is primarily associated with a group that one political party has a contingent that wants that group dead
There are two reasons for no AIDS vaccine: 1) it’s very hard to make a vaccine for a virus that targets the immune system and 2) it’s very hard to make a vaccine for a virus that is primarily associated with a group that one political party has a contingent that wants that group dead
Also I believe AIDS virus mutates very rapidly, which makes it harder in that sense to develope a vaccine for it.