Table 1. Onchocerciasis baseline evaluations (1991–1993) in fourteen villages (six sentinels and eight spot-check).
| Nodules | Microfilaria (mf) | |||||||
| LGA | Village | tested | positive | % positive | tested | positive | % positive | |
| Sentinel Villages | Karu | Gurku | 30 | 14 | 46.60% | 30 | 12 | 40.00% |
| Kokona | Arusu | na | na | na | 30 | 13 | 43.33% | |
| Bassa | Bakin Kogi Lemoro | 30 | 25 | 83.30% | na | na | na | |
| Bassa | Mafara | na | na | na | 32 | 14 | 43.75% | |
| Bokkos | Kamwai | na | na | na | 30 | 10 | 33.33% | |
| Jos East | Godong | 27 | 2 | 7.40% | 27 | 15 | 55.70% | |
| Subtotal | 87 | 41 | 47.13% | 149 | 64 | 42.95% | ||
| Spot-check villages | Karu | Sabon Ara | 30 | 14 | 46.60% | na | na | na |
| Karu | Takalafiya | 30 | 12 | 40.00% | na | na | na | |
| Karu | Zhewun Yelwa | 30 | 14 | 46.60% | 30 | 12 | 40.00% | |
| Kokona | Ambasi | 30 | 12 | 40.00% | na | na | na | |
| Kokona | Ninkoro | 30 | 13 | 43.33% | na | na | na | |
| Bassa | Rimi | 30 | 14 | 46.60% | na | na | na | |
| Bokkos | Richa | 30 | 12 | 40.00% | na | na | na | |
| Jos East | Gada | 31 | 5 | 16.13% | 31 | 3 | 9.70% | |
| Subtotal | 241 | 96 | 39.83% | 61 | 15 | 24.59% | ||
| Total | 328 | 137 | 41.77% | 210 | 79 | 37.62% | ||