00762nas a2200145   4500000000100000008004100001653003900042653001500081653002300096653001300119100000900132245007100141856003300212520037100245       2018                            d10aNeglected tropical diseases (NTDs)10aPrevalence10aPrevalence surveys10aTrachoma1 aWHO 00aDesign parameters for population-based trachoma prevalence survey.  uhttps://tinyurl.com/y9366u323 a<p>This document presents the principles important to the design of trachoma prevalence surveys conducted after interventions intended to eliminate the disease as a public health problem, and WHO recommendations for their implementation. The intended audience is technical units of health ministries of trachoma-endemic countries and their supporting partners.</p>