World Health Organization · Health

Yemen: Number of individuals in the country requiring preventive chemotherapy for onchocerciasis

1.37Mcount · 2025+336.3% since 2015

Number of individuals in the country requiring preventive chemotherapy for onchocerciasis. WHO Global Health Observatory indicator NTD_ONCHEMO. Annual figures for Yemen from 2013 to 2025.

20132025

Every year

YearValue (count)Note
20251,374,312
20241,459,857
20231,459,857
20221,457,625
2021763,811
2020628,728
2019628,728
2018628,728
2017628,728
2016322,819
2015315,000
2014300,000
2013300,000

Source

Published by World Health Organization. Licence: CC BY-NC-SA 3.0 IGO. Retrieved 2026-11-07.

The dataset for every country, with quality and provenance →

Cite or download

World Health Organization (2026). Number of individuals in the country requiring preventive chemotherapy for onchocerciasis. Interva. https://interva.co/dataset/who-ntd-onchemo (accessed 2026-11-08). catalog snapshot 2026-11-07.

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Number of individuals in the country requiring preventive chemotherapy for onchocerciasis in other countries

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Yemen: Number of individuals in the country requiring preventive chemotherapy for onchocerciasis (2013–2025) · Interva