Onchocerciasis

Infection transmitted by the bite of infected blackflies causing severe itching and eye lesions as the adult worm produces larvae and leading to visual impairment and permanent blindness.

The filarial worms (O. volvulus) are transmitted by the repeated bites of infected black flies (Simulium spp.) . These black flies breed in fast-flowing rivers and streams, mostly in remote villages located near fertile land where people rely on agriculture.

In human, female adult worms produce embryonic larvae (microfilariae) that migrate to the skin, eyes and other organs. When a female black fly bites an infected person during a blood meal, it also ingests microfilariae which develop further into the infectious L3 stage and are then transmitted to the next human host during subsequent bites.

131 maps found
Region Program stage Years Maps Data
Africa Continent Endemicity 2018 Download map png
Central Africa MDA/PC coverage (Therapeutic coverage) 2018 Download map png
Eastern Africa Endemicity 2018 Download map png
Western Africa MDA/PC coverage (Therapeutic coverage) 2018 Download map png
Central Africa Endemicity 2018 Download map png
WHO African Region (AFRO) MDA/PC coverage (Geographic coverage) 2018 Download map png
Western Africa Endemicity 2018 Download map png
Africa Continent MDA/PC coverage (Geographic coverage) 2018 Download map png
Southern Africa Endemicity 2018 Download map png
Eastern Africa MDA/PC coverage (Therapeutic coverage) 2018 Download map png
Southern Africa MDA/PC coverage (Therapeutic coverage) 2018 Download map png
Western Africa MDA/PC coverage (Geographic coverage) 2018 Download map png
WHO African Region (AFRO) MDA/PC coverage (Therapeutic coverage) 2018 Download map png
Eastern Africa MDA/PC coverage (Geographic coverage) 2018 Download map png
Southern Africa MDA/PC coverage (Geographic coverage) 2018 Download map png
Central Africa MDA/PC coverage (Geographic coverage) 2018 Download map png
WHO African Region (AFRO) Endemicity 2018 Download map png
Africa Continent MDA/PC coverage (Therapeutic coverage) 2018 Download map png
Africa Continent MDA/PC coverage (Therapeutic coverage) 2017 Download map png
Eastern Africa MDA/PC coverage (Geographic coverage) 2017 Download map png
Africa Continent MDA/PC coverage (Geographic coverage) 2017 Download map png
Central Africa MDA/PC coverage (Therapeutic coverage) 2017 Download map png
WHO African Region (AFRO) Endemicity 2017 Download map png
Africa Continent Endemicity 2017 Download map png
Central Africa Endemicity 2017 Download map png
WHO African Region (AFRO) MDA/PC coverage (Geographic coverage) 2017 Download map png
Eastern Africa MDA/PC coverage (Therapeutic coverage) 2017 Download map png
Western Africa MDA/PC coverage (Therapeutic coverage) 2017 Download map png
Eastern Africa Endemicity 2017 Download map png
Western Africa MDA/PC coverage (Geographic coverage) 2017 Download map png
Western Africa Endemicity 2017 Download map png
Southern Africa MDA/PC coverage (Geographic coverage) 2017 Download map png
Central Africa MDA/PC coverage (Geographic coverage) 2017 Download map png
Southern Africa Endemicity 2017 Download map png
WHO African Region (AFRO) MDA/PC coverage (Therapeutic coverage) 2017 Download map png
Southern Africa MDA/PC coverage (Therapeutic coverage) 2017 Download map png
WHO African Region (AFRO) MDA/PC coverage (Geographic coverage) 2016 Download map png
Southern Africa Endemicity 2016 Download map png
Southern Africa MDA/PC coverage (Therapeutic coverage) 2016 Download map png
Southern Africa MDA/PC coverage (Geographic coverage) 2016 Download map png
Central Africa MDA/PC coverage (Therapeutic coverage) 2016 Download map png
WHO African Region (AFRO) Endemicity 2016 Download map png
Africa Continent MDA/PC coverage (Therapeutic coverage) 2016 Download map png
WHO African Region (AFRO) MDA/PC coverage (Therapeutic coverage) 2016 Download map png
Eastern Africa MDA/PC coverage (Geographic coverage) 2016 Download map png
Central Africa Endemicity 2016 Download map png
Africa Continent Endemicity 2016 Download map png
Eastern Africa MDA/PC coverage (Therapeutic coverage) 2016 Download map png
Africa Continent MDA/PC coverage (Geographic coverage) 2016 Download map png
Eastern Africa Endemicity 2016 Download map png
Central Africa MDA/PC coverage (Geographic coverage) 2016 Download map png
Western Africa MDA/PC coverage (Therapeutic coverage) 2016 Download map png
Western Africa Endemicity 2016 Download map png
Western Africa MDA/PC coverage (Geographic coverage) 2016 Download map png
Central Africa MDA/PC rounds (Therapeutic coverage) 2013 - 2016 Download map png
Western Africa MDA/PC rounds (Therapeutic coverage) 2013 - 2016 Download map png
Africa Continent MDA/PC rounds (Therapeutic coverage) 2013 - 2016 Download map png
Southern Africa MDA/PC rounds (Therapeutic coverage) 2013 - 2016 Download map png
WHO African Region (AFRO) MDA/PC rounds (Therapeutic coverage) 2013 - 2016 Download map png
Eastern Africa MDA/PC rounds (Therapeutic coverage) 2013 - 2016 Download map png
Africa Continent MDA/PC coverage (Therapeutic coverage) 2015 Download map png
Southern Africa Endemicity 2015 Download map png
Africa Continent MDA/PC coverage (Geographic coverage) 2015 Download map png
Central Africa MDA/PC coverage (Geographic coverage) 2015 Download map png
Southern Africa MDA/PC coverage (Geographic coverage) 2015 Download map png
Southern Africa MDA/PC coverage (Therapeutic coverage) 2015 Download map png
Western Africa Endemicity 2015 Download map png
Africa Continent Endemicity 2015 Download map png
Eastern Africa MDA/PC coverage (Therapeutic coverage) 2015 Download map png
WHO African Region (AFRO) Endemicity 2015 Download map png
Western Africa MDA/PC coverage (Geographic coverage) 2015 Download map png
Eastern Africa MDA/PC coverage (Geographic coverage) 2015 Download map png
Central Africa Endemicity 2015 Download map png
WHO African Region (AFRO) MDA/PC coverage (Geographic coverage) 2015 Download map png
Western Africa MDA/PC coverage (Therapeutic coverage) 2015 Download map png
WHO African Region (AFRO) MDA/PC coverage (Therapeutic coverage) 2015 Download map png
Eastern Africa Endemicity 2015 Download map png
Central Africa MDA/PC coverage (Therapeutic coverage) 2015 Download map png
Western Africa Mapping Surveys (Skin Biopsy) 2014 - 2015 Download map png
Central Africa Mapping Surveys (Skin Biopsy) 2014 - 2015 Download map png
WHO African Region (AFRO) Mapping Surveys (Skin Biopsy) 2012 - 2015 Download map png
Africa Continent Mapping Surveys (Skin Biopsy) 2012 - 2015 Download map png
Central Africa Endemicity 2014 Download map png
Western Africa MDA/PC coverage (Therapeutic coverage) 2014 Download map png
Eastern Africa MDA/PC coverage (Therapeutic coverage) 2014 Download map png
Eastern Africa Endemicity 2014 Download map png
Eastern Africa MDA/PC coverage (Geographic coverage) 2014 Download map png
Western Africa Endemicity 2014 Download map png
WHO African Region (AFRO) MDA/PC coverage (Geographic coverage) 2014 Download map png
Western Africa MDA/PC coverage (Geographic coverage) 2014 Download map png
Central Africa MDA/PC coverage (Therapeutic coverage) 2014 Download map png
Southern Africa Endemicity 2014 Download map png
Africa Continent MDA/PC coverage (Geographic coverage) 2014 Download map png
Southern Africa MDA/PC coverage (Therapeutic coverage) 2014 Download map png
Southern Africa MDA/PC coverage (Geographic coverage) 2014 Download map png
WHO African Region (AFRO) MDA/PC coverage (Therapeutic coverage) 2014 Download map png
WHO African Region (AFRO) Endemicity 2014 Download map png
Africa Continent Endemicity 2014 Download map png
Central Africa MDA/PC coverage (Geographic coverage) 2014 Download map png
Africa Continent MDA/PC coverage (Therapeutic coverage) 2014 Download map png

Pages

1002 maps found
Region Country Program stage Years Maps Data
Central Africa Central African Republic MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa Malawi MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Mauritania MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Cote d'Ivoire Endemicity 2018 Download map pdf
Central Africa Cameroon Endemicity 2018 Download map png Download map pdf
Eastern Africa Tanzania (Mainland) MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Sierra Leone Endemicity 2018 Download map png Download map pdf
Western Africa Mauritania Endemicity 2018 Download map png Download map pdf
Central Africa Democratic Republic of the Congo MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa Zambia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa South Sudan MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Eastern Africa Comoros MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Angola Endemicity 2018 Download map png Download map pdf
Central Africa Democratic Republic of the Congo Endemicity 2018 Download map png Download map pdf
Western Africa Niger MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Senegal MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Niger MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Gabon MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Eastern Africa Uganda MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Republic of Congo Endemicity 2018 Download map png Download map pdf
Eastern Africa Madagascar MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Tanzania (Zanzibar) MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Central Africa Cameroon MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Eastern Africa Kenya MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Eastern Africa Madagascar MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Liberia Endemicity 2018 Download map png Download map pdf
Central Africa Equatorial Guinea Endemicity 2018 Download map png Download map pdf
Eastern Africa Rwanda Endemicity 2018 Download map png Download map pdf
Central Africa Burundi MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Tanzania (Mainland) MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa The Gambia MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Southern Africa Botswana Endemicity 2018 Download map png Download map pdf
Southern Africa Malawi MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Guinea Endemicity 2018 Download map png Download map pdf
Eastern Africa South Sudan Endemicity 2018 Download map png Download map pdf
Eastern Africa Eritrea MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Nigeria MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Algeria MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Southern Africa Zambia Endemicity 2018 Download map png Download map pdf
Central Africa Central African Republic Endemicity 2018 Download map png Download map pdf
Eastern Africa Mauritius Endemicity 2018 Download map pdf
Southern Africa Zimbabwe MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Guinea-Bissau MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa Zimbabwe MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Angola MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Algeria MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Nigeria MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Southern Africa Zimbabwe Endemicity 2018 Download map png Download map pdf
Eastern Africa Seychelles MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Comoros MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa Botswana MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Burundi MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Southern Africa South Africa MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Southern Africa South Africa Endemicity 2018 Download map png Download map pdf
Southern Africa Mozambique Endemicity 2018 Download map png Download map pdf
Western Africa Benin MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa Namibia MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Algeria Endemicity 2018 Download map png Download map pdf
Western Africa Sierra Leone MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Central Africa Sao Tome & Principe Endemicity 2018 Download map pdf
Eastern Africa Madagascar Endemicity 2018 Download map png Download map pdf
Western Africa The Gambia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Ethiopia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Ethiopia MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Sao Tome & Principe MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Eastern Africa Eritrea Endemicity 2018 Download map png Download map pdf
Central Africa Burundi Endemicity 2018 Download map png Download map pdf
Eastern Africa Tanzania (Mainland) Endemicity 2018 Download map png Download map pdf
Southern Africa eSwatini MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Central Africa Republic of Congo MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Rwanda MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Guinea-Bissau MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Cape Verde MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa eSwatini Endemicity 2018 Download map png Download map pdf
Eastern Africa Kenya MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Mali MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Guinea MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Central African Republic MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Mali MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Guinea-Bissau Endemicity 2018 Download map png Download map pdf
Central Africa Equatorial Guinea MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Southern Africa eSwatini MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Central Africa Chad MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa Zambia MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Eastern Africa Tanzania (Zanzibar) Endemicity 2018 Download map png Download map pdf
Southern Africa Lesotho MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Ethiopia Endemicity 2018 Download map png Download map pdf
Eastern Africa Kenya Endemicity 2018 Download map png Download map pdf
Western Africa Cote d'Ivoire MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Southern Africa Mozambique MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Liberia MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Southern Africa Namibia Endemicity 2018 Download map png Download map pdf
Western Africa Benin Endemicity 2018 Download map png Download map pdf
Southern Africa Malawi Endemicity 2018 Download map png Download map pdf
Eastern Africa Mauritius MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Central Africa Gabon MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Eastern Africa Seychelles MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Burkina Faso MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf
Western Africa Burkina Faso MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf
Western Africa Niger Endemicity 2018 Download map png Download map pdf

Pages

Data download

Dictionary