Control of infectious, intestinal diseases of humans requires ____________.

The effectiveness in controlling infectious, intestinal diseases in humans hinges on multiple interconnected factors, which is why the comprehensive approach encapsulated in the correct answer is essential. Safe water supplies are crucial because many intestinal diseases, such as those caused by parasites or bacteria, are transmitted through contaminated water. Ensuring access to clean and safe drinking water significantly reduces the incidence of these diseases.

Proper waste disposal is equally vital, as improper handling of human waste can lead to contamination of water sources, soil, and food, creating pathways for pathogens to spread. When waste is not disposed of properly, the risk of disease outbreaks increases dramatically.

Personal hygiene plays a critical role as well. Regular handwashing and proper sanitation practices significantly reduce the transmission of pathogens, especially after using the restroom or before handling food. When individuals maintain good personal hygiene, they decrease the likelihood of spreading infectious agents.

Collectively, these measures—safe water supplies, proper waste disposal, and personal hygiene—form a comprehensive strategy that effectively mitigates the risk of infectious intestinal diseases. This multifaceted approach acknowledges that controlling such diseases requires a combination of environmental management, infrastructural investment, and individual behavior changes.