Fig. 1.
Example of clustering of cholera cases around a pond, Pipulhat village, West Bengal, 2006 (outbreak no. 4)
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.