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.

DB name: 
Oncho
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1213 maps found
Region Country Program stage Years Portrait PDFs Landscape PDFs Data
Western Africa Mali MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Madagascar MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Uganda MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Burkina Faso MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Seychelles MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Cameroon MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Togo Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Mauritius Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Ghana MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Cameroon MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa South Sudan MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Nigeria MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Gabon MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa South Africa Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Lesotho Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Cameroon Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Rwanda MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Cote d'Ivoire MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Cote d'Ivoire MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa The Gambia MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Mauritania MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Lesotho MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea-Bissau Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Rwanda Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Ethiopia Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Algeria Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Mauritius MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Kenya MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zambia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Burundi MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Sierra Leone MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Uganda Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Mozambique Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Burkina Faso Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea-Bissau MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Cape Verde MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Mainland) MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Algeria MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Republic of Congo MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Ghana MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa South Sudan Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Liberia Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Cape Verde Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Sao Tome & Principe MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf 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 Download map png Download map pdf
Central Africa Democratic Republic of the Congo MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Togo MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Mauritius MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Cape Verde MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa South Africa MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Liberia MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Sao Tome & Principe Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Gabon Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Angola Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Mozambique MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zimbabwe MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zambia Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Namibia Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Comoros Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Lesotho MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Chad MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Zanzibar) MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Angola MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Rwanda MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Mainland) Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Algeria MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Madagascar Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Central African Republic Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Senegal MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Eritrea MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Equatorial Guinea MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Uganda MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Mozambique MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Central African Republic MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa South Sudan MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Madagascar MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Senegal Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Ghana Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Benin Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Niger MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa eSwatini MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zimbabwe Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Niger Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Central African Republic MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Cote d'Ivoire Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Liberia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Namibia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa The Gambia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Benin MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Sao Tome & Principe MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea-Bissau MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Zanzibar) Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Angola MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Southern Africa Malawi Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Central Africa Chad Endemicity 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Seychelles MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Ethiopia MDA/PC coverage (Geographic coverage) 2018 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Eritrea MDA/PC coverage (Therapeutic coverage) 2018 Download map png Download map pdf Download map png Download map pdf

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