i am a student at beijing,china.my english is not so good,i hope somebody could understand me.i suspect that someone around me may have hiv.now what i am afraid most is that i suspect my dad may have hiv,because i think he may sometime has sex with a prostitute in china.so,i am afraid maybe sometime he have used my toothbrush.and i also fear that my classmates,roommates may have.now,i take my toothbrush with me alltime.could anybody tell me something about this?i am really appreciate/