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Table 2 Human biting rate (HBR), sporozoite indices (SI) and entomological infection rate (EIR) for each vector in each site

From: Malaria case in Madagascar, probable implication of a new vector, Anopheles coustani

Sites

Entomological indices

An. arabiensis

An. coustani

An. funestus

An. mascarensis

HEXT

HINT

HEXT

HINT

HEXT

HINT

HEXT

HINT

Site A

No

45

23

133

28

0

2

90

62

HBR

4.50

2.30

13.30

2.80

0

0.20

9.00

6.20

SI

0.04

EIR

0.11

Site B

No

10

4

51

15

3

3

43

19

HBR

1.00

0.40

5.10

1.50

0.30

0.30

4.30

1.90

Site C

No

49

10

84

39

5

2

70

14

HBR

4.90

1.00

8.40

3.90

0.50

0.20

7.00

1.40

Site D

No

2

2

57

5

4

1

12

1

HBR

0.20

0.20

5.70

0.50

0.40

0.10

1.20

0.10

Site E

No

1

2

363

34

98

36

71

13

HBR

0.10

0.20

36.30

3.40

9.80

3.60

7.10

1.30

Site F

No

26

3

461

10

27

1

33

0

HBR

2.60

0.30

46.10

1.00

2.70

0.10

3.30

0

SI

0.01

EIR

0.01

Site G

No

4

1

505

95

9

14

37

4

HBR

0.40

0.10

50.50

9.50

0.90

1.40

3.70

0.40

Site H

No

0

0

368

20

8

2

85

8

HBR

0

0

36.80

2.00

0.80

0.20

8.50

0.80

SI

0.01

0.05

EIR

0,01

Site I

No

18

21

689

146

5

36

3

25

HBR

2.25

2.63

86.13

18.25

0.63

4.50

0.38

3.13

SI

0.03

EIR

0.21

  1. HBR human biting rate, the number of bite per person per night; SI sporozoite indices, the proportion of individual positive with Plasmodium among the total individuals caught for one species, EIR entomological infection rate: the number of infecting bite per person per site per month. In April 2013, one sample among the 253 primary vectors, An. funestus, was confirmed to be infected with P. falciparum. This specimen was captured indoors (Site I). In March 2014, no primary vector was positive but four An. coustani were positive: two were positive with P. vivax and two with P. falciparum. These specimens were captured indoors (Site A) and outdoors (Sites F, H). Italics face indicates that HBR is very high for An. coustani mainly outdoors