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Table 4 Evolution of Simulium exiguum (s.l.) infectivity rate, determined by dissection in Naiciona, Colombia, 1996–2001

From: Elimination of onchocerciasis from Colombia: first proof of concept of river blindness elimination in the world

Year Method No. of flies examined Flies with infective larvae (L3) Infectivity rate (%) 95% CI
1996 (baseline) Dissection 281 3 1.07 0.3–3.1
1998 Dissection 286 0 0 0–1.2
2001 Dissection 3371 1 0.03 7.5 × 10-6–0.2
  1. Abbreviations: 95% CI 95% confidence interval