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 Regionsort descending Type Years Maps Data
Soil-transmitted helminthiasis Western Africa T. trichiura Download map png
Loiasis Western Africa EWH-Questionnaire 2002 - 2014 Download map png
Soil-transmitted helminthiasis Western Africa Hookworms Download map png
Loiasis Western Africa Blood smear 2015 Download map png
Soil-transmitted helminthiasis Western Africa Ascaris Download map png
Soil-transmitted helminthiasis Western Africa All species Download map png
Onchocerciasis Western Africa Skin Biopsy 2014 - 2015 Download map png
Onchocerciasis Western Africa Nodule Palpation 1989 - 2014 Download map png
Lymphatic filariasis Western Africa Sentinel site baseline 2000 - 2013 Download map png
Lymphatic filariasis Western Africa 1900 - 2013 Download map png
Schistosomiasis Western Africa All species Download map png
Schistosomiasis Western Africa S. mansoni Download map png
Schistosomiasis Western Africa S. haematobium Download map png
Schistosomiasis Southern Africa All species Download map png
Schistosomiasis Southern Africa S. haematobium Download map png
Schistosomiasis Southern Africa S. mansoni Download map png
Soil-transmitted helminthiasis Southern Africa All species Download map png
Soil-transmitted helminthiasis Southern Africa Ascaris Download map png
Onchocerciasis Southern Africa Nodule Palpation 1998 - 2007 Download map png
Soil-transmitted helminthiasis Southern Africa Hookworms Download map png
Lymphatic filariasis Southern Africa 1957 - 2015 Download map png
Soil-transmitted helminthiasis Southern Africa T. trichiura Download map png
Lymphatic filariasis Southern Africa Sentinel site baseline 2008 - 2014 Download map png
Schistosomiasis Central Africa All species Download map png
Schistosomiasis Central Africa S. mansoni Download map png
Schistosomiasis Central Africa S. haematobium Download map png
Onchocerciasis Central Africa Nodule Palpation 1989 - 2011 Download map png
Loiasis Central Africa EWH-Questionnaire 2002 - 2014 Download map png
Soil-transmitted helminthiasis Central Africa T. trichiura Download map png
Loiasis Central Africa Blood smear 2015 Download map png
Soil-transmitted helminthiasis Central Africa All species Download map png
Lymphatic filariasis Central Africa 1900 - 2015 Download map png
Soil-transmitted helminthiasis Central Africa Ascaris Download map png
Lymphatic filariasis Central Africa Sentinel site baseline 2000 - 2013 Download map png
Onchocerciasis Central Africa Skin Biopsy 2014 - 2015 Download map png
Soil-transmitted helminthiasis Central Africa Hookworms Download map png
Schistosomiasis Eastern Africa All species Download map png
Schistosomiasis Eastern Africa S. haematobium Download map png
Schistosomiasis Eastern Africa S. mansoni Download map png
Onchocerciasis Eastern Africa Skin Biopsy 2012 - 2014 Download map png
Loiasis Eastern Africa EWH-Questionnaire 2002 - 2008 Download map png
Lymphatic filariasis Eastern Africa Sentinel site baseline 2001 - 2011 Download map png
Soil-transmitted helminthiasis Eastern Africa Hookworms Download map png
Soil-transmitted helminthiasis Eastern Africa T. trichiura Download map png
Soil-transmitted helminthiasis Eastern Africa All species Download map png
Onchocerciasis Eastern Africa Nodule Palpation 1996 - 2012 Download map png
Soil-transmitted helminthiasis Eastern Africa Ascaris Download map png
Lymphatic filariasis Eastern Africa 1921 - 2016 Download map png
Lymphatic filariasis WHO African Region (AFRO) Sentinel site baseline 2000 - 2014 Download map png
Onchocerciasis WHO African Region (AFRO) Skin Biopsy 2012 - 2015 Download map png
Soil-transmitted helminthiasis WHO African Region (AFRO) Hookworms Download map png
Schistosomiasis WHO African Region (AFRO) All species Download map png
Schistosomiasis WHO African Region (AFRO) S. mansoni Download map png
Schistosomiasis WHO African Region (AFRO) S. haematobium 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
Soil-transmitted helminthiasis WHO African Region (AFRO) T. trichiura Download map png
Loiasis WHO African Region (AFRO) Blood smear 2015 Download map png
Soil-transmitted helminthiasis WHO African Region (AFRO) All species Download map png
Lymphatic filariasis WHO African Region (AFRO) 1900 - 2016 Download map png
Soil-transmitted helminthiasis WHO African Region (AFRO) Ascaris Download map png
Lymphatic filariasis Africa Continent 1900 - 2016 Download map png
Lymphatic filariasis Africa Continent Sentinel site baseline 2000 - 2014 Download map png
Soil-transmitted helminthiasis Africa Continent Ascaris Download map png
Onchocerciasis Africa Continent Skin Biopsy 2012 - 2015 Download map png
Soil-transmitted helminthiasis Africa Continent Hookworms Download map png
Schistosomiasis Africa Continent All species Download map png
Schistosomiasis Africa Continent S. haematobium Download map png
Schistosomiasis Africa Continent S. mansoni Download map png
Onchocerciasis Africa Continent Nodule Palpation 1989 - 2014 Download map png
Loiasis Africa Continent EWH-Questionnaire 2000 - 2014 Download map png
Soil-transmitted helminthiasis Africa Continent T. trichiura Download map png
Loiasis Africa Continent Blood smear 2015 Download map png
Soil-transmitted helminthiasis Africa Continent All species Download map png
446 maps found
Disease Regionsort descending Location Type Years Maps Data
Soil-transmitted helminthiasis Eritrea Hookworms Download map png Download map
Soil-transmitted helminthiasis Mauritius Hookworms Download map png Download map
Soil-transmitted helminthiasis Mauritius Ascaris Download map png Download map
Soil-transmitted helminthiasis Mauritius All species Download map png Download map
Soil-transmitted helminthiasis Eritrea Ascaris Download map png Download map
Soil-transmitted helminthiasis Eritrea All species Download map png Download map
Lymphatic filariasis Eritrea 2014 - 2015 Download map png Download map
Soil-transmitted helminthiasis Mauritius T. trichiura Download map png Download map
Soil-transmitted helminthiasis Eritrea T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Togo T. trichiura Download map png Download map
Onchocerciasis Western Africa Liberia Nodule Palpation 1998 Download map png Download map
Onchocerciasis Western Africa Cote d’Ivoire Skin Biopsy 2014 Download map png Download map
Lymphatic filariasis Western Africa Guinea 1954 - 2005 Download map png Download map
Schistosomiasis Western Africa Guinea-Bissau S. haematobium Download map png Download map
Schistosomiasis Western Africa Togo S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Mauritania T. trichiura Download map png Download map
Schistosomiasis Western Africa Cote d’Ivoire S. mansoni Download map png Download map
Schistosomiasis Western Africa Guinea All species Download map png Download map
Schistosomiasis Western Africa The Gambia S. haematobium Download map png Download map
Schistosomiasis Western Africa Togo All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Burkina Faso Hookworms Download map png Download map
Lymphatic filariasis Western Africa Sierra Leone Sentinel site baseline 2007 - 2012 Download map png Download map
Schistosomiasis Western Africa Togo S. haematobium Download map png Download map
Schistosomiasis Western Africa Liberia All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Ghana T. trichiura Download map png Download map
Schistosomiasis Western Africa Guinea S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Senegal Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Cape Verde T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Cote d’Ivoire All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Mali All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Niger Ascaris Download map png Download map
Schistosomiasis Western Africa Cote d’Ivoire All species Download map png Download map
Schistosomiasis Western Africa Sierra Leone S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Liberia Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Burkina Faso All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Mali T. trichiura Download map png Download map
Lymphatic filariasis Western Africa Cote d’Ivoire Sentinel site baseline 2009 Download map png Download map
Schistosomiasis Western Africa Nigeria All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea-Bissau Ascaris Download map png Download map
Schistosomiasis Western Africa Guinea S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Niger Hookworms Download map png Download map
Schistosomiasis Western Africa Nigeria S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria All species Download map png Download map
Lymphatic filariasis Western Africa Burkina Faso Sentinel site baseline 2001 - 2013 Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea-Bissau Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Benin Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Algeria T. trichiura Download map png Download map
Schistosomiasis Western Africa Cape Verde S. haematobium Download map png Download map
Schistosomiasis Western Africa Mali S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Burkina Faso T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Liberia Ascaris Download map png Download map
Schistosomiasis Western Africa Benin S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea All species Download map png Download map
Lymphatic filariasis Western Africa Burkina Faso 1965 - 2012 Download map png Download map
Schistosomiasis Western Africa Nigeria S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa The Gambia Ascaris Download map png Download map
Schistosomiasis Western Africa Algeria S. mansoni Download map png Download map
Schistosomiasis Western Africa Mali All species Download map png Download map
Schistosomiasis Western Africa Liberia S. haematobium Download map png Download map
Schistosomiasis Western Africa Ghana S. haematobium Download map png Download map
Soil-transmitted helminthiasis Western Africa Nigeria T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Senegal All species Download map png Download map
Lymphatic filariasis Western Africa Togo Sentinel site baseline 2001 - 2009 Download map png Download map
Soil-transmitted helminthiasis Western Africa Benin Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Nigeria All species Download map png Download map
Schistosomiasis Western Africa Burkina Faso S. haematobium Download map png Download map
Loiasis Western Africa Nigeria Blood smear 2015 Download map png Download map
Soil-transmitted helminthiasis Western Africa Togo All species Download map png Download map
Schistosomiasis Western Africa Algeria All species Download map png Download map
Lymphatic filariasis Western Africa Togo 1968 - 2002 Download map png Download map
Soil-transmitted helminthiasis Western Africa Liberia All species Download map png Download map
Lymphatic filariasis Western Africa Mali 1968 - 2004 Download map png Download map
Lymphatic filariasis Western Africa Senegal Sentinel site baseline 2007 Download map png Download map
Schistosomiasis Western Africa Guinea-Bissau All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Sierra Leone Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa The Gambia All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Cote d’Ivoire Ascaris Download map png Download map
Schistosomiasis Western Africa Ghana S. mansoni Download map png Download map
Schistosomiasis Western Africa The Gambia S. mansoni Download map png Download map
Schistosomiasis Western Africa Algeria S. haematobium Download map png Download map
Schistosomiasis Western Africa Guinea-Bissau S. mansoni Download map png Download map
Soil-transmitted helminthiasis Western Africa Ghana All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Guinea Ascaris Download map png Download map
Soil-transmitted helminthiasis Western Africa Sierra Leone Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Benin All species Download map png Download map
Soil-transmitted helminthiasis Western Africa Senegal T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Cote d’Ivoire Hookworms Download map png Download map
Lymphatic filariasis Western Africa Benin Sentinel site baseline 2003 Download map png Download map
Soil-transmitted helminthiasis Western Africa Mauritania Ascaris Download map png Download map
Schistosomiasis Western Africa Senegal S. haematobium Download map png Download map
Lymphatic filariasis Western Africa Cote d’Ivoire 1965 - 2014 Download map png Download map
Soil-transmitted helminthiasis Western Africa Cape Verde Hookworms Download map png Download map
Soil-transmitted helminthiasis Western Africa Liberia T. trichiura Download map png Download map
Soil-transmitted helminthiasis Western Africa Ghana Ascaris Download map png Download map
Lymphatic filariasis Western Africa Niger Sentinel site baseline 2007 - 2009 Download map png Download map
Schistosomiasis Western Africa Benin S. mansoni Download map png Download map
Schistosomiasis Western Africa Niger S. haematobium Download map png Download map
Lymphatic filariasis Western Africa Sierra Leone 1922 - 2005 Download map png Download map
Schistosomiasis Western Africa Sierra Leone All species Download map png Download map

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