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. 2021 Jul 26;15(7):e0009604. doi: 10.1371/journal.pntd.0009604

Table 2. Population at risk and numbers of cases infected and with clinical manifestations by endemicity level for 2030.

Absolute numbers (N and DALYs) are presented in thousands.

Hypoendemic Mesoendemic Hyperendemic Very hyperendemic
N % DALYs N % DALYs N % DALYs N % DALYs
Total population at risk 145,846 100 - 67,483 100 - 18,053 100 - 4,721 100 -
Mf-positive 4,299 2.9 - 1,237 1.8 - 692 3.8 - 585 12.4 -
Mf-positive (age 5+) 4,299 2.9 - 1,237 1.8 - 691 3.8 - 585 12.4 -
Adult female worm infection 8,735 6.0 - 3,326 4.9 - 2,083 11.5 - 1,432 30.3 -
Palpable nodules 482 0.3 5 419 0.6 4 281 1.6 3 231 4.9 2
Severe itch 353 0.2 64 107 0.2 19 56 0.3 10 26 0.5 5
Reactive skin disease 89 0.1 4 23 <0.05 1 11 0.1 <0.5 6 0.1 <0.5
Total reversible onchocercal skin disease 442 0.3 68 130 0.2 21 67 0.4 11 32 0.7 5
Mild depigmentation 366 0.3 4 274 0.4 3 174 1 2 65 1.4 1
Severe depigmentation 277 0.2 18 233 0.3 15 238 1.3 15 115 2.4 7
Atrophy <0.5 <0.05 <0.5 <0.5 <0.05 <0.5 <0.5 <0.05 <0.5 <0.5 <0.05 <0.5
Hanging groin <0.5 <0.05 <0.5 1 <0.05 <0.5 6 <0.05 2 8 0.2 3
Total irreversible onchocercal skin disease 643 0.4 22 508 0.8 18 418 2.3 20 188 4 11
Total onchocercal skin disease* 1,566 1.1 95 1,057 1.6 43 765 4.2 33 451 9.5 18
Visual impairment 192 0.1 6 69 0.1 2 38 0.2 1 17 0.3 1
Blindness 34 <0.05 227 10 <0.05 74 14 0.1 102 11 0.2 87
Total onchocercal eye disease 226 0.2 233 80 0.1 77 51 0.3 103 27 0.6 87
Total all manifestations 1,792 1.2 329 1,137 1.7 120 817 4.5 137 478 10.1 106

* Note: Total onchocercal skin disease is the sum of palpable nodules, reversible and irreversible skin disease.