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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Region Country Program stage Years Portrait PDFs Landscape PDFs Data
Eastern Africa Ethiopia MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Cameroon MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Mozambique MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Equatorial Guinea MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zambia MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Madagascar MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Central African Republic MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Mainland) MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Mauritius MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Cote d'Ivoire MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Uganda MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Botswana MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Senegal MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Liberia MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Burundi MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa South Sudan MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea-Bissau MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Rwanda MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Gabon MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Namibia MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Eritrea MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zimbabwe MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Malawi MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Chad MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Zanzibar) MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Mozambique MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Democratic Republic of the Congo MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zambia MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea-Bissau MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Burkina Faso MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Seychelles MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Madagascar MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Cape Verde MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Mainland) MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa eSwatini MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Algeria MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Sao Tome & Principe MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Ghana MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Niger MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Equatorial Guinea MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Zimbabwe MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Mali MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Comoros MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa The Gambia MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Namibia MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Kenya MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Burundi MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Sierra Leone MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Malawi MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Central African Republic MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Zanzibar) MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Nigeria MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Ethiopia MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Angola MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Senegal MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Equatorial Guinea Mapping Surveys (Skin Biopsy) 2013 - 2015 Download map png Download map pdf
Western Africa Niger MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Eritrea MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Mauritania MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Cote d'Ivoire MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Togo MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa Lesotho MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Cameroon MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa South Africa MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Mali MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Chad MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa The Gambia MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Algeria MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Republic of Congo MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Gabon MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Benin MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Seychelles MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Kenya MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Nigeria MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Southern Africa eSwatini MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Mauritius MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Central Africa Democratic Republic of the Congo MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Uganda MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Liberia MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Cape Verde MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa South Sudan MDA/PC rounds (Geographic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Mauritania MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Comoros MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Togo MDA/PC rounds (Therapeutic coverage) 2013 - 2015 Download map png Download map pdf Download map png Download map pdf
Western Africa Ghana MDA/PC coverage (Geographic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea-Bissau Endemicity 2014 Download map png Download map pdf Download map png Download map pdf
Central Africa Chad MDA/PC coverage (Therapeutic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Mainland) MDA/PC coverage (Therapeutic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Central Africa Gabon MDA/PC coverage (Geographic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Southern Africa Malawi MDA/PC coverage (Therapeutic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Western Africa Guinea-Bissau MDA/PC coverage (Geographic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Central Africa Democratic Republic of the Congo Endemicity 2014 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Comoros MDA/PC coverage (Therapeutic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Tanzania (Zanzibar) MDA/PC coverage (Therapeutic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Western Africa Algeria MDA/PC coverage (Geographic coverage) 2014 Download map png Download map pdf Download map png Download map pdf
Western Africa Sierra Leone Endemicity 2014 Download map png Download map pdf Download map png Download map pdf
Southern Africa Lesotho Endemicity 2014 Download map png Download map pdf Download map png Download map pdf
Eastern Africa Kenya Endemicity 2014 Download map png Download map pdf Download map png Download map pdf

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