Taenia solium: WHO endemicity map update

Weekly epidemiological record

WHO/Department of control of neglected tropical diseases

Publication details

Editors: M. Donadeu, M.W. Lightowlers, A.S. Fahrion, J. Kessels, and B. Abela-Ridder
Number of pages: 16 p.
Publication date: 9 December 2016
Languages: English and French
WHO reference number:
Nos. 49/50, 2016, 91, 585–600



Cysticercosis is an infection caused by the parasite Taenia solium (T. solium), listed by WHO as a Neglected Tropical Disease. Cysticercus infection in the brain – neurocysticercosis (NCC) – is the cause of about 30% of epilepsy cases in endemic countries. The life cycle of T. solium requires pigs as intermediate hosts.

The map used by WHO to illustrate the endemicity of T. solium was updated in 2015 following a review of relevant literature and other indicators describing the likely transmission of the parasite. The review sought to highlight areas where full transmission of the life cycle of the parasite occurs or is likely to occur, particularly as indicated by the presence of porcine cysticercosis.

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