Sightsavers Reports

The importance of failure: how doing impact surveys that fail saves trachoma programmes money

Trachoma programmes undertake impact surveys after a number of rounds of mass drug administration (MDA); 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.

An eye health worker screens a young child for trachoma during a community screening in Sokoto, Nigeria.
Journal article
NTD, Economics and financing
Date published
The American Journal of Tropical Medicine and Hygiene
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