Soil-transmitted helminthiasis

Soil-transmitted helminth infections affect the poorest and most deprived communities. They are transmitted by eggs present in human faeces which in turn contaminate soil in areas where sanitation is poor.

The main species that infect people are the roundworm (Ascaris lumbricoides), the whipworm (Trichuris trichiura) and the hookworms (Necator americanus and Ancylostoma duodenale).

Intestinal worms produce a wide range of symptoms including intestinal manifestations (diarrhoea, abdominal pain), general malaise and weakness. Hookworms cause chronic intestinal blood loss that result in anaemia.

24 maps found
Region Program stage Years Maps Data
Southern Africa Mapping Surveys (Trichuris) Download map
Eastern Africa Mapping Surveys (Ascaris) Download map
Western Africa Mapping Surveys (Ascaris) Download map
Africa Continent Mapping Surveys (Hookworms) Download map
WHO African Region (AFRO) Mapping Surveys (Hookworms) Download map
Southern Africa Mapping Surveys (Ascaris) Download map
Eastern Africa Mapping Surveys (All species) Download map
Central Africa Mapping Surveys (Hookworms) Download map
Africa Continent Mapping Surveys (Trichuris) Download map
WHO African Region (AFRO) Mapping Surveys (Trichuris) Download map
Southern Africa Mapping Surveys (All species) Download map
Eastern Africa Mapping Surveys (Hookworms) Download map
Central Africa Mapping Surveys (Trichuris) Download map
Western Africa Mapping Surveys (Trichuris) Download map
Southern Africa Mapping Surveys (Hookworms) Download map
Eastern Africa Mapping Surveys (Trichuris) Download map
Central Africa Mapping Surveys (Ascaris) Download map
Western Africa Mapping Surveys (Hookworms) Download map
Africa Continent Mapping Surveys (Ascaris) Download map
WHO African Region (AFRO) Mapping Surveys (Ascaris) Download map
Central Africa Mapping Surveys (All species) Download map
Western Africa Mapping Surveys (All species) Download map
Africa Continent Mapping Surveys (All species) Download map
WHO African Region (AFRO) Mapping Surveys (All species) Download map
180 maps found
Region Location Program stage Years Maps Data
Western Africa Liberia Mapping Surveys (All species) Download map
Western Africa Guinea-Bissau Mapping Surveys (Ascaris) Download map
Western Africa Niger Mapping Surveys (Trichuris) Download map
Central Africa Burundi Mapping Surveys (Ascaris) Download map
Southern Africa eSwatini Mapping Surveys (Trichuris) Download map
Eastern Africa Uganda Mapping Surveys (All species) Download map
Western Africa The Gambia Mapping Surveys (Hookworms) Download map
Southern Africa Namibia Mapping Surveys (Trichuris) Download map
Central Africa Democratic Republic of the Congo Mapping Surveys (Hookworms) Download map
Western Africa Ghana Mapping Surveys (Hookworms) Download map
Central Africa Sao Tome & Principe Mapping Surveys (Ascaris) Download map
Western Africa Sierra Leone Mapping Surveys (Hookworms) Download map
Southern Africa Zambia Mapping Surveys (All species) Download map
Eastern Africa Kenya Mapping Surveys (Ascaris) Download map
Western Africa Liberia Mapping Surveys (Hookworms) Download map
Southern Africa Mozambique Mapping Surveys (All species) Download map
Western Africa The Gambia Mapping Surveys (Trichuris) Download map
Central Africa Republic of Congo Mapping Surveys (Hookworms) Download map
Eastern Africa Comoros Mapping Surveys (Hookworms) Download map
Southern Africa South Africa Mapping Surveys (Ascaris) Download map
Western Africa Togo Mapping Surveys (Hookworms) Download map
Western Africa Ghana Mapping Surveys (All species) Download map
Western Africa Cape Verde Mapping Surveys (All species) Download map
Southern Africa Malawi Mapping Surveys (Ascaris) Download map
Western Africa Senegal Mapping Surveys (Trichuris) Download map
Eastern Africa Rwanda Mapping Surveys (All species) Download map
Southern Africa Botswana Mapping Surveys (Trichuris) Download map
Western Africa Nigeria Mapping Surveys (Ascaris) Download map
Southern Africa Mozambique Mapping Surveys (Hookworms) Download map
Eastern Africa Ethiopia Mapping Surveys (Ascaris) Download map
Southern Africa Zambia Mapping Surveys (Hookworms) Download map
Eastern Africa Kenya Mapping Surveys (All species) Download map
Central Africa Central African Republic Mapping Surveys (All species) Download map
Central Africa Cameroon Mapping Surveys (Ascaris) Download map
Western Africa Togo Mapping Surveys (Trichuris) Download map
Central Africa Sao Tome & Principe Mapping Surveys (All species) Download map
Western Africa Cote d’Ivoire Mapping Surveys (Trichuris) Download map
Eastern Africa Comoros Mapping Surveys (Trichuris) Download map
Southern Africa Malawi Mapping Surveys (All species) Download map
Western Africa Benin Mapping Surveys (All species) Download map
Western Africa Cote d’Ivoire Mapping Surveys (Ascaris) Download map
Southern Africa Zimbabwe Mapping Surveys (Trichuris) Download map
Southern Africa South Africa Mapping Surveys (All species) Download map
Central Africa Gabon Mapping Surveys (Hookworms) Download map
Southern Africa Mozambique Mapping Surveys (Trichuris) Download map
Eastern Africa South Sudan Mapping Surveys (Ascaris) Download map
Eastern Africa Rwanda Mapping Surveys (Hookworms) Download map
Central Africa Equatorial Guinea Mapping Surveys (Ascaris) Download map
Southern Africa eSwatini Mapping Surveys (Hookworms) Download map
Central Africa Angola Mapping Surveys (Trichuris) Download map
Western Africa Ghana Mapping Surveys (Trichuris) Download map
Central Africa Angola Mapping Surveys (Hookworms) Download map
Eastern Africa Kenya Mapping Surveys (Hookworms) Download map
Eastern Africa Tanzania (Zanzibar) Mapping Surveys (Ascaris) Download map
Central Africa Chad Mapping Surveys (Hookworms) Download map
Central Africa Gabon Mapping Surveys (All species) Download map
Western Africa Burkina Faso Mapping Surveys (All species) Download map
Western Africa Mauritania Mapping Surveys (Ascaris) Download map
Western Africa Sierra Leone Mapping Surveys (Trichuris) Download map
Western Africa Liberia Mapping Surveys (Ascaris) Download map
Eastern Africa Kenya Mapping Surveys (Trichuris) Download map
Western Africa Niger Mapping Surveys (Ascaris) Download map
Southern Africa Malawi Mapping Surveys (Hookworms) Download map
Southern Africa eSwatini Mapping Surveys (Ascaris) Download map
Southern Africa South Africa Mapping Surveys (Hookworms) Download map
Western Africa Guinea-Bissau Mapping Surveys (All species) Download map
Central Africa Cameroon Mapping Surveys (All species) Download map
Central Africa Angola Mapping Surveys (Ascaris) Download map
Eastern Africa Tanzania (Mainland) Mapping Surveys (Trichuris) Download map
Eastern Africa South Sudan Mapping Surveys (All species) Download map
Central Africa Republic of Congo Mapping Surveys (Trichuris) Download map
Western Africa Senegal Mapping Surveys (Ascaris) Download map
Eastern Africa Seychelles Mapping Surveys (Hookworms) Download map
Western Africa Guinea Mapping Surveys (Ascaris) Download map
Western Africa Algeria Mapping Surveys (Hookworms) Download map
Western Africa Mauritania Mapping Surveys (All species) Download map
Central Africa Burundi Mapping Surveys (All species) Download map
Western Africa Algeria Mapping Surveys (Ascaris) Download map
Southern Africa South Africa Mapping Surveys (Trichuris) Download map
Eastern Africa Tanzania (Zanzibar) Mapping Surveys (All species) Download map
Eastern Africa Ethiopia Mapping Surveys (Hookworms) Download map
Southern Africa Malawi Mapping Surveys (Trichuris) Download map
Eastern Africa Seychelles Mapping Surveys (Trichuris) Download map
Central Africa Democratic Republic of the Congo Mapping Surveys (Ascaris) Download map
Western Africa Benin Mapping Surveys (Trichuris) Download map
Central Africa Gabon Mapping Surveys (Trichuris) Download map
Western Africa Benin Mapping Surveys (Hookworms) Download map
Western Africa Guinea-Bissau Mapping Surveys (Hookworms) Download map
Eastern Africa Tanzania (Mainland) Mapping Surveys (Ascaris) Download map
Central Africa Sao Tome & Principe Mapping Surveys (Hookworms) Download map
Eastern Africa Ethiopia Mapping Surveys (All species) Download map
Western Africa Nigeria Mapping Surveys (All species) Download map
Eastern Africa Madagascar Mapping Surveys (Ascaris) Download map
Western Africa Guinea-Bissau Mapping Surveys (Trichuris) Download map
Central Africa Burundi Mapping Surveys (Hookworms) Download map
Western Africa Mauritania Mapping Surveys (Hookworms) Download map
Southern Africa Zimbabwe Mapping Surveys (Ascaris) Download map
Eastern Africa Uganda Mapping Surveys (Hookworms) Download map
Central Africa Equatorial Guinea Mapping Surveys (All species) Download map
Western Africa Cote d’Ivoire Mapping Surveys (All species) Download map

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