Yes. However it has also spread through transfusions. Lots.
But there are very few AIDS cases where a lesbian gave a lesbian AIDS.
It’s all men on men.
Obama let gay men donate blood again.
If you need a transfusion, get it from someone you know. A family member. I wouldn’t take hospital blood willingly unless I can myself confirm it is clean.
I had a CABG 10 years ago and was given a blood transfusion against my objection. I don’t know whether I would have been forced to have it if I had physically refused to cooperate. I remember feeling funny after it. No, I didn’t amuse anyone.