I has read a lot of messages in this community.Someone said if some body fluid with hiv virus get into your common wound,it is no risk for you to get infection with hiv.But few days ago,i fighted with my friend.He uesd a small knife cut my hand into the dermis,and there were some his blood on the kinfe(he is a hiv patient)Is there any risk that the blood with hiv virus got into my dermis.Is open wound contains wound in dermis.Is there any risk for me?I did no bleed lots of blood. only a bit.