once i was at barbor shop i had my hair cut clean cut then there was a small cut i noticed on the forehead but it was really small he used two blades but both were new but he put the blade on surface where he puts his equipment i have a doubt that the surface would be contaimnated by virus could i get some sort of std from there on to the blade and to my blood further more if somebody touch a surface again and again on a surface with a contaimnated hand does this increase virus load on a given surface.