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Table 2 Seasonal variation in the number of blood-fed and proportion of sporozoite-positive An. gambiae s.l. in Ellibou, Côte d’Ivoire, in 2015

From: Species composition and insecticide resistance in malaria vectors in Ellibou, southern Côte d’Ivoire and first finding of Anopheles arabiensis in Côte d’Ivoire

Season

Month

Blood-fed mosquitoes (n)

Sporozoite positive (%)a

Long dry

January

2

0.0 [0.0–65.8]

 

February

2

0.0 [0.0–65.8]

 

March

69

1.5 [0.1–7.8]

Long rainy

April

76

7.9 [3.7–16.2]

 

May

54

9.3 [4.0–19.9]

 

June

124

6.5 [3.3–12.2]

 

July

191

0.5 [0.0–2.9]

Short dry

August

30

10.0 [3.5–25.6]

 

September

5

100 [56.6–100]

Short rainy

October

3

66.7 [20.8–98.3]

 

November

29

3.5 [0.2–17.2]

Long dry

December

22

0.0 [0.0–14.9]

Entire year

 

607

5.3 [3.8–7.3]

  1. n: number of blood-fed An. gambiae s.l. mosquitoes caught using pyrethroid spray catches (PSC)
  2. a The number in brackets indicate the lower and upper limits of the 95% confidence intervals