Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Modified F-diagram showing transmission routes of animal feces to humans. Adapted from Wagner, E.; Lanoix, J., Excreta disposal for rural areas and small communities. Monograph Series World Health Organization.1958, 39, 182. Copyright 1958, World Health Organization.
