Be sure to wash those foods or cook them thoroughly... About 1 in 5 illnesses were linked to leafy green vegetables — more than any other type of food. And nearly half of all food poisonings were attributed to produce in general, when illnesses from other fruits and vegetables were added in... Many of the vegetable-related illnesses come from norovirus, which is often spread by cooks and food handlers. So contamination sometimes has more to do with the kitchen or restaurant it came from then the food itself...