What is one of the three factors that make developing countries particularly susceptible to illnesses?

Contaminated water is indeed one of the critical factors contributing to the susceptibility of developing countries to illnesses. Access to clean and safe drinking water is essential for maintaining health and preventing diseases. In many developing regions, water sources can be frequently contaminated with pathogens, heavy metals, and chemicals due to a lack of proper sanitation and waste management practices. This contamination can lead to waterborne diseases such as cholera, dysentery, and typhoid fever, disproportionately affecting vulnerable populations, particularly children.

Although poor healthcare access, high income inequality, and inadequate education systems also significantly influence health outcomes, contaminated water represents a direct and tangible threat to health that can lead to outbreaks and widespread illness. Addressing water quality not only alleviates immediate health burdens but can also enhance overall well-being and developmental prospects in these countries.