Today Cut an apple with a knife and ate it. Later my friend told me that he used the same knif to cut apples 3 days ago and there was a little cut on his skin. I am worried that i cut my applr today with knife can have hapatitis b or c . I dnt know this knife was used in last three days or not also i do not know his blood is infected or not. Before cutting i just put some wayter on knife. Kindly help me. Can i be infected witb hap b or c like this (in above mentioned condition)?