Sightsavers Reports

The Importance of Failure: How Doing Impact Surveys That Fail Saves Trachoma Programs Money

Trachoma programmes undertake impact surveys after a number of rounds of mass drug administration – this helps determine whether additional MDA rounds are recommended before re-survey. Impact survey costs, and the proportion of impact surveys ‘failing’ influence the cost of eliminating trachoma.

The paper looks at the financial cost of undertaking MDA with and without conducting impact surveys, to see when continuing MDA without impact surveys becomes advantageous in financial cost terms. This was modelled and found to be when the (failure rate) continuation rate exceeds 71%. Doing impact surveys often saves money, money that can be redirected to provide MDA in other areas.

A health worker examines a person's eyes using a headlight. The patient is sitting as he holds her head to examine her eyes.
Journal article
Date published
The American Journal of Tropical Medicine and Hygiene
Relevant links
Read the journal article
Back to 'Publications and resources'