“Under the leadership of the Ministry of Public Health and Population, and with technical and operational support from WHO, Yemen implemented one of its most ambitious onchocerciasis mass drug administration (MDA) campaigns yet – reaching populations long considered unreachable…

In December 2025, WHO supported the Ministry of Public Health and Population to redesign the MDA approach, moving from static distribution points to an intensive door-to-door strategy across 10 high-priority districts in Hajjah and Al-Mahweet governorates and 6 highly-endemic districts of Taiz governorate. Despite the difficult terrain and insecurity, the adapted approach achieved full geographical access, reaching 91% population coverage in Hajjah and Al-Mahweet and 86.5% in Taiz – well above the WHO-recommended 80% threshold for effective disease control.”

From World Health Organization.