Foodborne, usually referred to as malady, and waterborne diseases are conditions caused by intake or drinking food or water that's contaminated by microbes or the toxins they manufacture. The foremost frequent causes of food or water-borne diseases are microorganisms, viruses, and parasites. Symptoms vary with the causative agent, and range from slight abdominal pain and nausea to retching, vomiting, abdominal cramps, fever, and diarrhea. Fever, chills, headache, malaise and muscular pains may accompany gastrointestinal symptoms. Vomiting, with or without diarrhea, abdominal cramps and fever are common symptoms of viral disease or staphylococcal intoxication.