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
Disease Region Type Yearssort descending Maps Data
Schistosomiasis Eastern Africa All species Download map png
Soil-transmitted helminthiasis Western Africa T. trichiura Download map png
Schistosomiasis Southern Africa All species Download map png
Schistosomiasis Central Africa All species Download map png
Schistosomiasis Eastern Africa S. haematobium Download map png
Soil-transmitted helminthiasis Western Africa Hookworms Download map png
Schistosomiasis Southern Africa S. haematobium Download map png
Schistosomiasis Central Africa S. mansoni Download map png
Soil-transmitted helminthiasis WHO African Region (AFRO) Hookworms Download map png
Schistosomiasis Eastern Africa S. mansoni Download map png
Soil-transmitted helminthiasis Africa Continent Ascaris Download map png
Soil-transmitted helminthiasis Western Africa Ascaris Download map png
Schistosomiasis Southern Africa S. mansoni Download map png
Schistosomiasis Central Africa S. haematobium Download map png
Schistosomiasis WHO African Region (AFRO) All species Download map png
Soil-transmitted helminthiasis Western Africa All species Download map png
Schistosomiasis WHO African Region (AFRO) S. mansoni Download map png
Soil-transmitted helminthiasis Southern Africa All species Download map png
Soil-transmitted helminthiasis Africa Continent Hookworms Download map png
Soil-transmitted helminthiasis Central Africa T. trichiura Download map png
Soil-transmitted helminthiasis Eastern Africa Hookworms Download map png
Schistosomiasis WHO African Region (AFRO) S. haematobium Download map png
Soil-transmitted helminthiasis Southern Africa Ascaris Download map png
Soil-transmitted helminthiasis Central Africa All species Download map png
Schistosomiasis Africa Continent All species Download map png
Soil-transmitted helminthiasis Eastern Africa T. trichiura Download map png
Schistosomiasis Africa Continent S. haematobium Download map png
Soil-transmitted helminthiasis WHO African Region (AFRO) T. trichiura Download map png
Soil-transmitted helminthiasis Eastern Africa All species Download map png
Soil-transmitted helminthiasis Southern Africa Hookworms Download map png
Soil-transmitted helminthiasis Central Africa Ascaris Download map png
Schistosomiasis Africa Continent S. mansoni Download map png
Soil-transmitted helminthiasis WHO African Region (AFRO) All species Download map png
Schistosomiasis Western Africa All species Download map png
Soil-transmitted helminthiasis Eastern Africa Ascaris Download map png
Soil-transmitted helminthiasis Africa Continent T. trichiura Download map png
Soil-transmitted helminthiasis Southern Africa T. trichiura Download map png
Schistosomiasis Western Africa S. mansoni Download map png
Soil-transmitted helminthiasis WHO African Region (AFRO) Ascaris Download map png
Soil-transmitted helminthiasis Africa Continent All species Download map png
Soil-transmitted helminthiasis Central Africa Hookworms Download map png
Schistosomiasis Western Africa S. haematobium Download map png
Onchocerciasis Southern Africa Nodule Palpation 1998 - 2007 Download map png
Loiasis Eastern Africa EWH-Questionnaire 2002 - 2008 Download map png
Onchocerciasis Central Africa Nodule Palpation 1989 - 2011 Download map png
Lymphatic filariasis Eastern Africa Sentinel site baseline 2001 - 2011 Download map png
Onchocerciasis Eastern Africa Nodule Palpation 1996 - 2012 Download map png
Lymphatic filariasis Western Africa Sentinel site baseline 2000 - 2013 Download map png
Lymphatic filariasis Western Africa 1900 - 2013 Download map png
Lymphatic filariasis Central Africa Sentinel site baseline 2000 - 2013 Download map png
Lymphatic filariasis WHO African Region (AFRO) Sentinel site baseline 2000 - 2014 Download map png
Loiasis Western Africa EWH-Questionnaire 2002 - 2014 Download map png
Lymphatic filariasis Africa Continent Sentinel site baseline 2000 - 2014 Download map png
Onchocerciasis Eastern Africa Skin Biopsy 2012 - 2014 Download map png
Loiasis Central Africa EWH-Questionnaire 2002 - 2014 Download map png
Onchocerciasis Western Africa Nodule Palpation 1989 - 2014 Download map png
Onchocerciasis WHO African Region (AFRO) Nodule Palpation 1989 - 2014 Download map png
Loiasis WHO African Region (AFRO) EWH-Questionnaire 2000 - 2014 Download map png
Onchocerciasis Africa Continent Nodule Palpation 1989 - 2014 Download map png
Loiasis Africa Continent EWH-Questionnaire 2000 - 2014 Download map png
Lymphatic filariasis Southern Africa Sentinel site baseline 2008 - 2014 Download map png
Onchocerciasis WHO African Region (AFRO) Skin Biopsy 2012 - 2015 Download map png
Loiasis Western Africa Blood smear 2015 Download map png
Onchocerciasis Africa Continent Skin Biopsy 2012 - 2015 Download map png
Onchocerciasis Western Africa Skin Biopsy 2014 - 2015 Download map png
Loiasis Central Africa Blood smear 2015 Download map png
Lymphatic filariasis Central Africa 1900 - 2015 Download map png
Loiasis WHO African Region (AFRO) Blood smear 2015 Download map png
Lymphatic filariasis Southern Africa 1957 - 2015 Download map png
Onchocerciasis Central Africa Skin Biopsy 2014 - 2015 Download map png
Loiasis Africa Continent Blood smear 2015 Download map png
Lymphatic filariasis Africa Continent 1900 - 2016 Download map png
Lymphatic filariasis WHO African Region (AFRO) 1900 - 2016 Download map png
Lymphatic filariasis Eastern Africa 1921 - 2016 Download map png
446 maps found
Disease Region Country Type Yearssort descending Maps Data
Schistosomiasis Western Africa Guinea-Bissau S. haematobium Download map png Download map
Schistosomiasis Western Africa The Gambia S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Togo T. trichiura Download map png Download map
Soil-transmitted helminthiasis Central Africa Cameroon Hookworms Download map png Download map
Soil-transmitted helminthiasis Mauritius Hookworms Download map png Download map
Soil-transmitted helminthiasis Central Africa Angola All species Download map png Download map
Schistosomiasis Central Africa Gabon S. mansoni Download map png Download map
Schistosomiasis Western Africa Guinea All species Download map png Download map
Soil-transmitted helminthiasis Central Africa Gabon T. trichiura Download map png Download map
Soil-transmitted helminthiasis Central Africa Cameroon Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Senegal Hookworms Download map png Download map
Soil-transmitted helminthiasis Central Africa Republic of Congo Ascaris Download map png Download map
Schistosomiasis Southern Africa Lesotho S. haematobium Download map png Download map
Schistosomiasis Southern Africa Mozambique S. mansoni Download map png Download map
Schistosomiasis Western Africa Liberia All species Download map png Download map
Soil-transmitted helminthiasis Southern Africa Zimbabwe T. trichiura Download map png Download map
Soil-transmitted helminthiasis Southern Africa Mozambique Hookworms Download map png Download map
Soil-transmitted helminthiasis Central Africa Chad All species Download map png Download map
Schistosomiasis Western Africa Cote d’Ivoire S. mansoni Download map png Download map
Schistosomiasis Western Africa Togo S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Cape Verde T. trichiura Download map png Download map
Soil-transmitted helminthiasis Southern Africa Mozambique Ascaris Download map png Download map
Soil-transmitted helminthiasis Eastern Africa South Sudan Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Burkina Faso Hookworms Download map png Download map
Schistosomiasis Central Africa Burundi S. haematobium Download map png Download map
Schistosomiasis Western Africa Guinea S. mansoni Download map png Download map
Soil-transmitted helminthiasis Eritrea Hookworms Download map png Download map
Soil-transmitted helminthiasis Eastern Africa South Sudan Ascaris Download map png Download map
Schistosomiasis Western Africa Togo S. mansoni Download map png Download map
Soil-transmitted helminthiasis Central Africa Sao Tome & Principe All species Download map png Download map
Schistosomiasis Central Africa Equatorial Guinea All species Download map png Download map
Schistosomiasis Southern Africa South Africa S. mansoni Download map png Download map
Onchocerciasis Eastern Africa Rwanda Nodule Palpation Download map png Download map
Soil-transmitted helminthiasis Western Africa Ghana T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Ethiopia Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Cote d’Ivoire All species Download map png Download map
Schistosomiasis Eastern Africa Comoros S. haematobium Download map png Download map
Schistosomiasis Southern Africa Mozambique All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Mauritania T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Ethiopia Ascaris Download map png Download map
Schistosomiasis Western Africa Togo All species Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Tanzania (Zanzibar) All species Download map png Download map
Schistosomiasis Central Africa Central African Republic All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Burkina Faso All species Download map png Download map
Schistosomiasis Western Africa Cote d’Ivoire All species Download map png Download map
Schistosomiasis Central Africa Sao Tome & Principe S. haematobium Download map png Download map
Schistosomiasis Eastern Africa Mauritius S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Mali T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea-Bissau Hookworms Download map png Download map
Soil-transmitted helminthiasis Mauritius Ascaris Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Seychelles All species Download map png Download map
Schistosomiasis Southern Africa Botswana S. mansoni Download map png Download map
Schistosomiasis Southern Africa Lesotho All species Download map png Download map
Soil-transmitted helminthiasis Central Africa Sao Tome & Principe T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea-Bissau Ascaris Download map png Download map
Soil-transmitted helminthiasis Central Africa Republic of Congo Hookworms Download map png Download map
Soil-transmitted helminthiasis Southern Africa eSwatini Ascaris Download map png Download map
Schistosomiasis Western Africa Guinea S. haematobium Download map png Download map
Schistosomiasis Western Africa Nigeria S. mansoni Download map png Download map
Schistosomiasis Central Africa Democratic Republic of the Congo S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Benin Hookworms Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Seychelles T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Comoros Hookworms Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Uganda All species Download map png Download map
Schistosomiasis Southern Africa eSwatini S. mansoni Download map png Download map
Schistosomiasis Eastern Africa South Sudan S. haematobium Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Kenya T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eastern Africa Comoros Ascaris Download map png Download map
Soil-transmitted helminthiasis Southern Africa Lesotho Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria All species Download map png Download map
Schistosomiasis Central Africa Angola S. haematobium Download map png Download map
Schistosomiasis Southern Africa Lesotho S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Liberia Hookworms Download map png Download map
Soil-transmitted helminthiasis Southern Africa Lesotho Ascaris Download map png Download map
Schistosomiasis Southern Africa Zambia S. mansoni Download map png Download map
Soil-transmitted helminthiasis Central Africa Gabon All species Download map png Download map
Schistosomiasis Central Africa Gabon All species Download map png Download map
Schistosomiasis Western Africa Sierra Leone S. mansoni Download map png Download map
Schistosomiasis Eastern Africa Eritrea S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Niger Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Mali All species Download map png Download map
Schistosomiasis Western Africa Cape Verde S. haematobium Download map png Download map
Schistosomiasis Western Africa Nigeria 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 Niger Ascaris Download map png Download map
Schistosomiasis Eastern Africa South Sudan All species Download map png Download map
Soil-transmitted helminthiasis Southern Africa South Africa All species Download map png Download map
Schistosomiasis Southern Africa eSwatini All species Download map png Download map
Schistosomiasis Western Africa Nigeria S. haematobium Download map png Download map
Schistosomiasis Western Africa Liberia S. haematobium Download map png Download map
Soil-transmitted helminthiasis Central Africa Central African Republic T. trichiura Download map png Download map
Soil-transmitted helminthiasis Southern Africa Botswana Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa The Gambia Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea All species Download map png Download map
Schistosomiasis Central Africa Cameroon S. mansoni Download map png Download map
Schistosomiasis Western Africa Mali All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Nigeria T. trichiura Download map png Download map
Soil-transmitted helminthiasis Southern Africa Botswana Ascaris Download map png Download map
Soil-transmitted helminthiasis Southern Africa eSwatini Hookworms Download map png Download map

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