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.
Categorization of exposure pathways (designated by source) by dose and frequency
| Dose | |||
|---|---|---|---|
| High | Low | ||
| Frequency | High | Food | Soil |
| Floor | |||
| Off-ground | |||
| Low | Drain | DF | |
| Tap water | |||
| Sachet water | |||
DF = direct contact with own feces. Frequency shows how frequent (1/days) children ingest Escherichia coli from sources.
