There were some yard workers working in the yard with branches and these strange trees that have huge thorns on them and did not wear work gloves or anything. I could see them and they must have cut their hands. One of the guys was just being nice and shook my 5 year old's hand when he walked outside. It freaked me out because he too has a cut on his hand. I did not see any blood and washed his hand right away but I cannot help the anxiety building right now and really need you to tell me if this is a possible scenario. If the guy had a new cut from the branches and shook my son's hand is there any possible way my son could get hiv in this scenario even remotely? I read all the previous hand shake posts that I could and did not see one similar.