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Table 3 Comparison of entomological indices between the two study periods (baseline study (1999–2000) and present investigation)

From: Impact of repeated ivermectin treatments against onchocerciasis on the transmission of loiasis: an entomologic evaluation in central Cameroon

Study period   Infection rate (%) Infective rate (%) Potential infective rate MHL3 load MFL3 load
   S D S+ D S D S+ D S D S+D S D S+ D S D S+D
Baseline   6.7 9.0 7.1 2.1 2.1 2.1 2.8 2.8 2.8 119.0 13.0 103.0 141.0 18.0 123.0
2012   3.0 3.6 3.0 1.7 2.7 1.7 2.0 2.8 2.0 78.0 10.0 70.0 122.0 121.0 121.0
  p-value 0.001 0.04 0.001 0.49 0.73 0.55 0.29 0.99 0.30 0.91 0.51 0.91 0.84 0.48 0.55
  1. NB: S= Chrysops silacea; D= Chrysops dimidiata; S+D= both species combined; MHL3= mean head L3 load; MFL3= mean fly L3 load.