要被宣布为无麦地那龙线虫病状态，国家需要具备零病例传播报告，并在此之后的至少三年内保持积极监测。

To be declared free of dracunculiasis, a country needs to have reported zero transmission and afterwards maintained active surveillance for at least three years.

youdao

要被宣布为无麦地那龙线虫病状态，国家需要具备零病例传播报告，并在此之后的至少三年内保持积极监测。

To be declared free of dracunculiasis, a country needs to have reported zero transmission and afterwards maintained active surveillance for at least three years.

youdao