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.
The threshold concentrations of worm eggs in faeces used to classify infections as light, moderate and heavy proposed by a World Health Organization Expert Committee in 2002 (WHO 2002a). No references or data are given in support of these numbers
| Intensity | Ascaris lumbricoides | Trichuris trichiura | Hookworms |
|---|---|---|---|
| Low | 1–4 999 | 1–999 | 1–1 999 |
| Moderate | 5 000–49 999 | 1 000–9 999 | 2 000–3 999 |
| High | ≥50 000 | ≥10 000 | ≥4 000 |
