These maps identify which districts require mass treatment, based on the treatment recommendations by WHO and guided by the predictive risk maps. These maps also show where further worm surveys would be useful. Recommendations are given at the second administrative level – typically defined as the district – which is the level at which control decisions are usually made. The control planning maps are a valuable tool for the rational targeting of treatment and the efficient design of further surveys.
For further technical information regarding district classification, see the accompanying technical document.
Soil-transmitted helminths
For STH, these maps show that mass deworming is indicated if >33% of the district population live in an area where prevalence exceeds either the 20% or 50% thresholds. Areas for which the model predicts poorly, and where further worm surveys should probably be carried out, are indicated in yellow.
- The inset map shows the location of existing STH surveys.
Schistosomiasis
Work is still in progress for schistosomiasis. Sign up to receive an alert when these maps become available.

