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Table 1 Summary of trapping results per field trapping site.

From: Environmental conditions and Puumala virus transmission in Belgium

  

Site number

Site name

Absolute number of bank voles

Number of bank voles tested

Number of PUUV positive bank voles

Prevalence (%)

CI for prevalence

2004

Northern Belgium

1

Groot Schietveld

32

20

0

0.00

0.00 – 16.68

  

2

Driehoeksbos

8

7

0

0.00

0.00 – 37.71

  

3

St. Jansberg

71

55

0

0.00

0.00 – 6.81

  

4

Hustenveld

70

33

0

0.00

0.00 – 10.14

  

5

Jongenbos

52

31

0

0.00

0.00 – 10.79

  

6

Belle-Vue bos

87

59

0

0.00

0.00 – 6.35

  

7

Alserbos

66

50

6

12.00

5.36 – 23.83

  

8

Hornebos

71

43

1

2.33

0.12 – 12.37

 

Southern Belgium

9

Anderlues

20

15

0

0.00

0.00 – 22.22

  

10

Fontaine-l'Evêque

16

15

0

0.00

0.00 – 22.22

  

11

Havelange

20

18

4

22.22

7.97 – 47.14

  

12

Hamois

24

18

0

0.00

0.00 – 18.52

  

13

Beaumont

152

137

34

24.82

18.18 – 32.80

  

14

Somme-Leuze

90

69

5

7.25

2.90 – 15.78

  

15

Chimay

21

21

0

0.00

0.00 – 15.89

  

16

Viroinval

82

76

12

15.79

9.03 – 25.56

  

17

Couvin

40

40

2

5.00

0.90 – 17.10

2005

Northern Belgium

1

Groot Schietveld

15

13

0

0.00

0.00 – 22.51

  

2

Driehoeksbos

25

21

1

4.76

0.25 – 23.26

  

3

St. Jansberg

46

38

1

2.63

0.14 – 14.00

  

4

Hustenveld

15

9

0

0.00

0.00 – 32.33

  

5

Jongenbos

4

2

0

0.00

0.00 – 77.63

  

6

Bellevuebos

57

44

0

0.00

0.00 – 8.51

  

7

Alserbos

47

39

6

15.38

6.92 – 30.54

  

8

Hornebos

72

54

3

5.56

1.54 – 15.45

 

Southern Belgium

9

Anderlues

46

39

0

0.00

0.00 – 8.59

  

10

Fontaine l'Evêque

62

55

22

40.00

27.78 – 53.66

  

11

Havelange

45

38

13

34.21

20.80 – 51.33

  

12

Hamois

27

22

7

31.82

15.18 – 54.65

  

13

Beaumont

84

77

34

44.16

33.03 – 55.87

  

14

Somme-Leuze

97

85

5

5.88

2.35 – 13.33

  

15

Chimay

145

129

28

21.71

15.32 – 29.78

  

16

Viroinval

155

129

13

10.08

5.65 – 16.57

  

17

Couvin

93

82

15

18.29

11.06 – 27.97

  1. Number of trapped, tested and seropositive bank voles, and prevalence for each field trapping site. Site numbers refer to Figure 1. Data of southern Belgium correspond to the total number of bank voles captured in summer and autumn. Confidence intervals (CI) for prevalence were calculated using the Quantitative Parasitology free software [39].