It is estimated that, at any given time, half of the people in developing countries are suffering from diseases caused either directly by infection through the consumption of contaminated water or food, or indirectly by disease-carrying organisms that breed in water.
55. 根据估计，在任何时候，发展中国家有一半人口因为吃了污染的水或食物而直接生病或因为滋生在水中的传播疾病的微生物而间接生病。