No, the immunodeficiency virus does not live in water. There was such a case: Greg Luganis, in 1988, at the games in Seoul, broke his head while jumping from a tower, blood got into the pool and no one got infected. The virus quickly dies in an open environment.
I can please you, HIV is transmitted only through biological fluids - blood, semen, breast milk, vaginal discharge. You can get infected only if there is a lot of blood in the toilet water and you pour this water on your wounds at least. Here's an article for you - http://livehiv.ru/vse-o-vich/
You can even die from a cold, because all the defenders of your body have decided to build a liberal state and have put on their direct duties to protect your health from harmful microbes that just float in the toilet (so in no case drink from there). If you do return them to the fold of their reasonable duties, they will destroy any germs that live even on the surface of your skin of your hands, even in your morning porridge and so on. HIV is not a disease, this is a situation in which your inner defenders are chasing a noodle. You can get infected with the situation by changing the population in your blood. Foreign aggression, so enter the iron curtain for various kinds of intervention and penetration into the body.
No, the current is in the air, so in no case breathe next to people, because they may not know about their positive status and breathe on you, you will get sick, breathe on others and due to the fact that you do not know how hold your breath, humanity will die out