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Table 3 The total numbers of mosquitoes examined and sporozoite rates for An. arabiensis , An. gambiae s.s . and An. funestus collected by pyrethrum spray catch from Chipula and Kela villages in the lower Shire valley Malawi, between January 2002 and January 2003

From: Entomological indices of malaria transmission in Chikhwawa district, Southern Malawi

 

Total

Chipula village

Kela village

No. tested

No. positive

Sporozoite rate (95% CI)

No. tested

No. positive

Sporozoite rate (95% CI)

An. arabiensis

2315

792

35

4.4 (2.9 – 5.8)

1523

39

2.6 (1.8 – 3.4)

An. gambiae s.s.

718

219

27

12.3 (10.2–4.4)

499

49

9.8 (8.2–11.5)

An. funestus

925

411

21

5.1 (0.8 – 9.5)

514

21

4.1 (1.5 – 6.7)

Total

3958

1422

83

5.8 (4.6-7.0)

2536

109

4.3 (3.5 – 5.1)