Top 10 drinking-water and sanitation related pathogens
20 June 2025
| Technical document

Overview
This WHO publication highlights the ten pathogens most significantly linked to unsafe drinking-water and sanitation systems. Drawing on disease burden data, transmission pathways, and resistance patterns, the document profiles major enteric and non-enteric pathogens—such as E. coli, Vibrio cholerae, Shigella, Rotavirus, and Cryptosporidium—that contribute to over 1.4 million deaths annually.
WHO Team
Water, Sanitation, Hygiene and Health (WSH)
Editors
World Health Organization
Number of pages
5
Copyright
World Health Organization