hello. i have known this forum for long time, it helped my friend once, but this is the first time i have to ask. my question is weird. but i am anxious when it comes to my child so please help. the only thing i am really curious is,if the imune system of small children is less strong and they can catch hiv more easily (or this is negligible). my 4yrs old son loves to meet a friend of mine, who is just great friend but her sexual life is not always "safe". I am very careful about the contacts when she cuts with knife while cooking etc but there is one thing that always happens too quick - sharing food and drinks. she has that terrible habit of sharing food (they are a big family and it is normal for them). like today, my son wanted a piece of water melon, so she shared with hers. she bit a piece and gave him the rest of it. till i could say something it was in his mouth. is there any possibility to transmit hiv? i am thinking about it whole day. the melon was on the air for only a few seconds till my son put it in his mouth, i am anxious about this so much.thank you!