Which measure best prevents diarrheal diseases in detainee camps?

• A. Appropriate site planning to avoid overcrowding
• B. Distribution of soap
• C. Provision of safe water in sufficient quantity
• D. Building of latrines

Answer: (C)

Access to safe, adequate water is foundational for preventing diarrheal diseases in crowded settings because it directly cuts the main transmission route: fecal-oral exposure from contaminated water. When people have enough clean water, they can drink safely, wash hands, utensils, and surfaces, and maintain latrines and food preparation practices that limit pathogen spread. In a detainee camp, where close contact and poor sanitation amplify transmission, providing water of good quality in sufficient quantity enables daily hygiene and sanitation activities that dramatically reduce diarrheal risk.

Other measures help, but they depend on there being enough water to be effective. Soap alone doesn’t prevent illness if there isn’t enough water to wash properly, and latrines reduce contamination but require water for cleaning and maintenance. Site planning to avoid overcrowding is important, but without a reliable, clean water supply, the spread of diarrheal pathogens remains difficult to control. Hence, ensuring safe water in ample quantity has the broadest and most direct impact on preventing diarrhea in these settings.