WHO世界卫生组织：2025年Yaws消灭：用于评估中断传播的血清学调查指南报告（英文版）

This document summarizes guidance developed for national programmes on conducting serosurveys to assess whether interruption of yaws transmission has been achieved, with the objective of confirming yaws seroprevalence below 1% at each of three serosurveys over a period of 3–10 years after reporting the last case of active yaws in a region. It proposes active testing of children aged 1–5 years through population-based surveys and includes recommendations on survey design, sample size determina