Amongst the food-borne diseases, poultry has been found to be the leading cause in the U.S. This is followed by green leafy vegetables and beef, which cause severe food poisoning and other stomach ailments, says a report released by the Centers for Disease Control and Prevention.

According to the report 39 percent of the disease is caused by Norovirus, while Salmonella is responsible for 27 percent of the food poisoning cases. Health experts feel that these germs travel into the food due to the unhygienic ways the food handlers handle the products. Most of the time, it has been found that the food handlers do not wash their hands after going to the toilet, which causes the Norovirus outbreak. While Salmonella infection happens when the food is tainted by animal feces. Such tainted foods are mostly of animal origin like egg, milk, beef and poultry - they contain salmonella. However, cooking them well can thoroughly destroy salmonella.