I was eating a banana when someone else's blood was present on it. He had a open cut on his hand and I ate the banana which had that blood on it. I didn't gurgle my mouth too. I don't have open cut in my mouth but I have a silver filled tooth which was filled 11 years ago and it's eroded or eroding from that teeth. So that crown teeth has become a bit hollow or with a hole in it which is a big hole in the middle of the crown teeth. But no pain or bleeding from it. Is it a open wound or hole or cut? I also have throat pain from too much screaming and low voice. Can it cause hiv or hep? Please reply soon. Please anyone reply soon.