HIV is among the least contagious diseases in existence.
HIV is among the least contagious diseases in existence.
I don’t know if it is the least contagious, but it does require actions to contract it like:
Blood transfusion
unprotected sex
sharing needles
accidental prick of needle in a clinical situation
It isn’t the least contagious, but you don’t get it by breathing it in or touching your face.