Sampling strategies for monitoring and evaluation of morbidity targets for soil-transmitted helminths.

ABSTRACT:

Background

The current World Health Organization (WHO) target for the three major soil-transmitted helminth (STH) infections is to reduce prevalence of moderate-to-heavy infections to below 1% by 2020. In terms of monitoring and evaluation (M&E), the current WHO guidelines for control of STHs recommend evaluation of infection levels in school-age children (SAC) after five to six years of preventive chemotherapy (PC), using the standard Kato-Katz faecal smear. Here, we assess the predictive performance of various sampling designs for the evaluation of the morbidity target.

Methodology/principal findings

Using two mathematical models for STH transmission and control, we simulate how the number of villages and SAC sampled affect the ability of survey results in sentinel village

SUBMITTER: Giardina F 

PROVIDER: S-EPMC6615707 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature