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Table 2 The entomological estimation of malaria transmission intensity attributable to Anopheles farauti on Ndendo Island, Temotu Province, Solomon Islands during 2008 and 2010.

From: Bionomics of the malaria vector Anopheles farauti in Temotu Province, Solomon Islands: issues for malaria elimination

Entomological parameters Pre-intervention Post-intervention
Lata Nov 2008 Pala Nov 2008 Pala Apr 2010 Pala June 2010 Pala Dec 2010
Sporozoite rate (S) (n = number assayed) 0.0026 (n = 1,150) 0.0000 (n = 2,561) 0.0013 (n = 749) 0.0015 (n = 1,308) 0.0008 (n = 1,292)
Biting rate (B; b/p/n)     NI  
   Indoor 8.56 68.54 10.13   44.50
   Outdoor 30.42 88.47 35.13   80.08
   Overall 19.5 78.5 22.63   62.29
Entomological inoculation rate (EIR; ib/p/y) 18.25 <0.001 10.74 NI 17.59
Endophagy (Proportion indoors ± se) 0.221 ± 0.012 (n = 1,172) 0.432 ± 0.010 (n = 2,355) 0.223 ± 0.016 (n = 679) NI 0.357 ± 0.012 (n = 1,495)
Nocturnal biting (Proportion 9 pm-4 am ± se) 0.503 ± 0.014 (n = 1,172) 0.523 ± 0.014 (n = 2,355) 0.546 ± 0.019 (n = 679) NI 0.378 ± 0.012 (n = 1,495)
Proportion of indoor contact (πi) 0.368 ± 0.120 0.570 ± 0.059 0.367 ± 0.108 NI 0.404 ± 0.063
  1. Where, S = no. of sporozoite positive mosquitoes/no. of mosquitoes tested; B = no. of mosquitoes collected/no. of nights/no. of collectors; and EIR = S × Boverall × 365.
  2. Endophagy is the proportion of mosquitoes caught indoors; nocturnal biting is the proportion of mosquitoes caught during hours when most people are asleep; and the proportion of indoor contact is the indoor and outdoor biting rates weighted throughout the night by the proportion of humans that are typically indoors or outdoors at each time period - see Methods for details. NI = data not included as HLC made from 6-10 pm.