This has resulted in “four billion cases of diarrhoea and 2.2 million deaths every year, ” not to mention the suffering caused by intestinal worms, schistosomiasis, and trachoma.
Šī paša iemesla dēļ cilvēki cieš no parazītiskiem tārpiem un tādām slimībām kā šistosomatoze un trahoma.