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Table 3 Variation in the Entomological Inoculation Rate (EIR) for An. gambiae and An. ziemanni

From: Anopheles ziemanni a locally important malaria vector in Ndop health district, north west region of Cameroon

 

August 2010

September 2010

October 2010

November 2010

January 2011

April 2011

May 2011

Total

 

N

m.a

IR

EIR

N

m.a

IR

EIR

N

m.a

IR

EIR

N

m.a

IR

EIR

N

m.a

IR

EIR

N

m.a

IR

EIR

N

m.a

IR

EIR

N

m.a

IR

EIR

Backyit

                                

An. gambiae s.l.

56

2.333

0.02

0.047

33

1.375

0

0

7

0.292

0

0

4

0.167

-

-

3

0.125

0

0

7

0.292

0

0

12

0.5

0

0

122

0.726

0.011

0.008

An. ziemanni

44

1.833

0.026

0.048

109

4.542

0

0

373

15.542

0.005

0.078

640

26.667

0.006

0.16

190

7.917

0

0

1

0.042

0.08

0.003

37

1.542

0.04

0.062

1394

8.298

0.007

0.058

Total

100

4.167

0.022

0.092

142

5.917

0

0

380

15.833

0.005

0.079

644

26.833

0.006

0.161

193

8.042

0

0

8

0.333

0.03

0.01

49

2.042

0.03

0.061

1516

9.024

0.007

0.063

Mbafuh

        

An. gambiae s.l.

0

0

0

0

2

0.083

0

0

0

0

-

-

0

0

-

-

1

0.042

0

0

0

0

-

-

5

0.208

0

0

8

0.333

0

0

An. ziemanni

11

0.458

0

0

148

6.167

0

0

363

15.125

0.008

0.121

378

15.75

0.005

0.079

234

9.75

0.004

0.039

0

0

-

-

0

0

0

0

1134

6.750

0.005

0.034

Total

11

0.458

0

0

150

6.25

0

0

363

15.125

0.008

0.121

378

15.75

0.005

0.079

235

9.792

0.004

0.039

0

0

-

-

5

0.208

0

0

1142

6.798

0.005

0.034

Mbapishi

        

An. gambiae s.l.

2

0.083

0

0

0

0

-

-

0

0

-

-

0

0

-

-

1

0.042

-

-

50

2.083

-

-

4

0.167

0

0

57

0.339

0

0

An. ziemanni

91

3.792

0

0

236

9.833

0

0

371

15.458

0.008

0.124

227

9.458

0.004

0.038

224

9.333

0.004

0.037

4

0.167

0

0

16

0.667

0

0

1169

6.958

0.004

0.028

Total

93

3.875

0

0

236

9.833

0

0

371

15.458

0.008

0.124

227

9.458

0.004

0.038

225

9.375

0.004

0.038

54

2.25

0

0

20

0.833

0

0

1226

7.298

0.004

0.029

  1. N: number of mosquitoes collected; m.a: man biting rate (aggressivity); IR: Infection Rate; EIR: Entomological Inoculation Rate.