you cannot get hiv from kissing not even french kissing. the common explanation we give is that hiv has to be in large amounts to get into the bloodstream to cause infection. in saliva you would have to drink or come in contact with a bucket of saliva with hiv in order to get enough of the virus to get an infection. also the inside lining of the mouth is tough to deal with chewing so unless there is a bleeding gum or ulcer on the mouth and someone with hiv gets either a bucket of saliva in your mouth or bleeds in your mouth (which hopefully will not be happening) the risk is extremely low.
can you get aids/hiv from kissing?