使用者:特洛卡/臨時草稿

[[File:F-diagram-01.jpg|thumb|upright=1.3|"F圖" （Faces-糞便、Fingers-手指、Flies-雙翅目、Fields-田野、Fluids-流體、Food-食物), 顯示糞便-口腔疾病傳播途徑。垂直的藍線顯示切斷路徑的方式：廁所，安全的水，衛生和洗手。 糞口路徑 (or alternatively the oral–fecal route or orofecal route) is a route of transmission of a disease, when 病原體 in 糞便 particles passing from one 宿主 are introduced into the 口腔 of another host. One main cause of fecal–oral disease transmission in 開發中國家 is lack of adequate sanitation and, often connected to that problem, 水污染 with fecal material.