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Table 2 Entomologic indices in the present investigation (2012)

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

Study period   No of chrysops caught* BD TP Infection rate (%) Infective rate (%) MHL3 load
   S D S+D S D S+D S D S+D S D S+D S D S+D S D S+D
March   282 42 324 213.9 39.3 253.2 572.5 0.0 572.5 3.9 2.4 3.7 2.5 0.0 2.2 100.7 0.0 100.7
April   270 31 301 136.0 17.0 153.0 204.6 0.0 204.6 3.3 0.0 3.0 2.2 0.0 2.0 67.7 0.0 67.7
May   584 26 610 303.8 15.5 319.3 30.2 17.3 47.5 2.1 11.5 2.5 0.9 11.5 1.3 11.6 9.7 10.9
June   313 11 324 157.0 7.0 164.0 352.0 0.0 352.0 3.5 0.0 3.4 1.9 0.0 1.9 117.3 0.0 117.3
  Total 1449 110 1559 810.5 78.8 889.5 1159.3 17.3 1176.6 3.0 3.6 3.0 1.7 2.7 1.7 78.0 9.7 70.0
  p-value -   -   -   0.94   0.89   -  
  1. *All the Chrysops were dissected except one C. silacea caught in March; BD= biting densities; TP= transmission potential; MHL3= mean head L3 load. S= Chrysops silacea; D= Chrysops dimidiata; S+D= both species combined.