Microbial Diseases of the Digestive System Transmitted in food and water Fecal-oral cycle can be broken by: Proper sewage disposal Disinfection of drinking water Proper food preparation and storage Microbial Diseases of the Digestive System • Transmitted in food and water • Fecal-oral cycle can be broken by: • Proper sewage disposal • Disinfection of drinking water • Proper food preparation and storage