Mapping Surveys

Here we collate available site-level pre-control mapping data for each of the five PC-NTDs (lymphatic filariasis, onchocerciasis, soil-transmitted helminthiasis, schistosomiasis and trachoma), including both national mapping surveys and robust population-based prevalence data from research studies. Loiasis mapping survey data are also available. Loiasis was mapped in order to identify areas where mass administration of ivermectin is not recommended, or should be undertaken after precautionary measures have been put in place.

The assembled data can be used to determine the graphical distribution of transmission, to estimate the burden of disease, and to identify implementation units where preventive chemotherapy is required. They also help to highlight where further survey data are required. Mapping survey data also provide a baseline against which to measure the impact of control efforts.

The WHO provides a number of operational guidelines and standardised methodologies for conducting mapping surveys: to learn more, please visit the Resources page.

74 maps found
There are currently no regional maps for this Program stage
446 maps found
Disease Region Location Type Years Maps Data
Lymphatic filariasis Western Africa Togo 1968 - 2002 Download map png Download map
Lymphatic filariasis Western Africa The Gambia 1950 - 2002 Download map png Download map
Onchocerciasis Central Africa Central African Republic Nodule Palpation 1999 - 2001 Download map png Download map
Lymphatic filariasis Western Africa Benin 1954 - 2000 Download map png Download map
Onchocerciasis Southern Africa Malawi Nodule Palpation 1998 Download map png Download map
Onchocerciasis Western Africa Liberia Nodule Palpation 1998 Download map png Download map
Lymphatic filariasis Eastern Africa Comoros 1969 - 1982 Download map png Download map
Lymphatic filariasis Eastern Africa Seychelles 1970 Download map png Download map
Schistosomiasis Eastern Africa Uganda S. mansoni Download map png Download map
Soil-transmitted helminthiasis Southern Africa South Africa T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Rwanda All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Sierra Leone Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Liberia All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Cote d’Ivoire Ascaris Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Ethiopia T. trichiura Download map png Download map
Soil-transmitted helminthiasis Southern Africa Namibia Hookworms Download map png Download map
Schistosomiasis Central Africa Chad S. mansoni Download map png Download map
Soil-transmitted helminthiasis Southern Africa Malawi Hookworms Download map png Download map
Schistosomiasis Southern Africa Namibia S. mansoni Download map png Download map
Schistosomiasis Eastern Africa Rwanda S. haematobium Download map png Download map
Schistosomiasis Western Africa Algeria S. haematobium Download map png Download map
Schistosomiasis Western Africa Togo S. mansoni Download map png Download map
Schistosomiasis Central Africa Burundi S. haematobium Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Ethiopia Hookworms Download map png Download map
Soil-transmitted helminthiasis Mauritius Hookworms Download map png Download map
Schistosomiasis Western Africa Guinea-Bissau S. haematobium Download map png Download map
Schistosomiasis Central Africa Equatorial Guinea All species Download map png Download map
Onchocerciasis Eastern Africa Rwanda Nodule Palpation Download map png Download map
Schistosomiasis Western Africa Guinea All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Mauritania T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Burkina Faso Hookworms Download map png Download map
Soil-transmitted helminthiasis Eastern Africa South Sudan Ascaris Download map png Download map
Schistosomiasis Western Africa The Gambia S. haematobium Download map png Download map
Soil-transmitted helminthiasis Central Africa Sao Tome & Principe All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Ghana T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Comoros T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa South Sudan All species Download map png Download map
Soil-transmitted helminthiasis Central Africa Chad Ascaris Download map png Download map
Soil-transmitted helminthiasis Eritrea Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria Ascaris Download map png Download map
Soil-transmitted helminthiasis Central Africa Burundi T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Ghana Hookworms Download map png Download map
Schistosomiasis Western Africa Cape Verde S. mansoni Download map png Download map
Soil-transmitted helminthiasis Central Africa Sao Tome & Principe Hookworms Download map png Download map
Schistosomiasis Western Africa Mauritania S. mansoni Download map png Download map
Schistosomiasis Central Africa Republic of Congo S. haematobium Download map png Download map
Schistosomiasis Western Africa Sierra Leone S. haematobium Download map png Download map
Schistosomiasis Western Africa Algeria S. mansoni Download map png Download map
Schistosomiasis Central Africa Sao Tome & Principe All species Download map png Download map
Schistosomiasis Western Africa Benin S. haematobium Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Madagascar All species Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Tanzania (Zanzibar) Ascaris Download map png Download map
Soil-transmitted helminthiasis Central Africa Burundi Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Cape Verde All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Cote d’Ivoire T. trichiura Download map png Download map
Schistosomiasis Southern Africa Zambia All species Download map png Download map
Schistosomiasis Central Africa Equatorial Guinea S. haematobium Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Madagascar Hookworms Download map png Download map
Schistosomiasis Southern Africa Malawi S. mansoni Download map png Download map
Schistosomiasis Central Africa Burundi All species Download map png Download map
Schistosomiasis Southern Africa Zambia S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Sierra Leone T. trichiura Download map png Download map
Soil-transmitted helminthiasis Southern Africa Namibia All species Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Rwanda Ascaris Download map png Download map
Schistosomiasis Eastern Africa Mauritius All species Download map png Download map
Schistosomiasis Southern Africa eSwatini S. haematobium Download map png Download map
Schistosomiasis Southern Africa Zimbabwe S. mansoni Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Ethiopia All species Download map png Download map
Soil-transmitted helminthiasis Central Africa Gabon Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Liberia T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Togo Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Niger T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Cote d’Ivoire Hookworms Download map png Download map
Schistosomiasis Eastern Africa Ethiopia S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Cape Verde Hookworms Download map png Download map
Schistosomiasis Central Africa Republic of Congo S. mansoni Download map png Download map
Schistosomiasis Western Africa Niger S. haematobium Download map png Download map
Schistosomiasis Southern Africa Zambia S. mansoni Download map png Download map
Schistosomiasis Central Africa Angola S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Niger Hookworms Download map png Download map
Soil-transmitted helminthiasis Mauritius Ascaris Download map png Download map
Schistosomiasis Central Africa Sao Tome & Principe S. haematobium Download map png Download map
Schistosomiasis Central Africa Gabon All species Download map png Download map
Schistosomiasis Southern Africa Lesotho All species Download map png Download map
Soil-transmitted helminthiasis Central Africa Chad T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria All species Download map png Download map
Soil-transmitted helminthiasis Southern Africa Lesotho Ascaris Download map png Download map
Schistosomiasis Eastern Africa Mauritius S. haematobium Download map png Download map
Soil-transmitted helminthiasis Central Africa Gabon All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Tanzania (Zanzibar) T. trichiura Download map png Download map
Soil-transmitted helminthiasis Southern Africa Lesotho All species Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Tanzania (Mainland) Ascaris Download map png Download map
Soil-transmitted helminthiasis Eritrea All species Download map png Download map
Soil-transmitted helminthiasis Southern Africa Zambia Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria Hookworms Download map png Download map
Schistosomiasis Eastern Africa Comoros S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Nigeria Hookworms Download map png Download map
Schistosomiasis Western Africa Niger S. mansoni Download map png Download map

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