The primary strategy in preventing diarrhea is the avoidance of food and water contaminated with fecal pathogens. The consumer is protected by health inspections of restaurants, farms, food servers, and processing plants. There are garbage collection and disposal routines. Vegetables are not fertilized with night soil. Food is refrigerated.
Food is wrapped and packaged to prevent contamination.
The population is relatively disease-free, so there is little diarrheal disease to pass person to person. Drinking bottled water may be the best advice in much of the world. More effective There are two preferred methods of water disinfection. A 3-minute boil is adequate at all altitudes even with heavily contaminated water. Iodine or chlorine can then be used at lower doses to kill bacteria and viruses.