My son is 5 years old, today I had prepared cottage cheese and kept it in the open for half an hour for it to cool down in the open. When I came back I saw the quantity reduced. Then I lightly fried it and served it in dinner to my son also. Now for the first time I saw a rat in our house. i am worried if the rat had eaten the cheese which I cooked. Will any harm occur to my son if he would have eaten the food which might have been tasted by the rat?