Skip to main content

Table 3 Estimates of the minimum numbers of mosquitoes impacted by the treatment, surviving until after the first rains, and the derived estimate of the minimum number that entered aestivation

From: The contribution of aestivating mosquitoes to the persistence of Anopheles gambiae in the Sahel

Village a

Houses b

Dry Killed c

EarlyWet d

EnterAest e

Babobougou (T)

58

469

77

546

Boyila (T)

198

2,965

87

3,052

Sanafouka (C)

188

44

128

NDf

Bagadaji (C)

195

78

78

NDf

  1. a In treated villages (T), all houses were subjected to insecticide application 4 times per
  2. month, whereas in control villages (C), only 25 houses were subjected to insecticide application once per month.
  3. b Total houses in the village, including houses used as kitchens, storage, etc.
  4. c Estimate of the total An. gambiae M form that were killed by treatments, calculated as the sum over months (January - May) of the product of the M form monthly house density multiplied by total number of treated houses and the number of treatments per month. In treated villages during April, the high density was used to calculate the number of mosquitoes killed in one treatment and the average across February, March, and May was used for the other three treatments.
  5. d Estimate of the total An. gambiae M form that were present 3-6 d after the first rain, calculated as the product of the M form house density at that time multiplied by total number of houses in the village.
  6. e Estimate of the minimal An. gambiae M form that entered aestivation in each village, calculated as the sum of the those killed throughout the dry season and those that survived until after the rains.
  7. f This was not determined (ND) for the control villages.
Back to article page