If hiv positive guy working in restaurant and he don't know he is hiv positive on example when he prepare the food for customersif blood leaked to the food without his attention or hair from his head or hand transference to the food or any other fluid and the Clint eat it eat it with the food it drink it let is suppose also there are some bleeding cuts in the customer mouth are these cases could considered as hiv transmission risk or not let me know please thank you