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Table 4 – Potential risk of exposure (days) to Dirofilaria immitis infected Culex pipiens based on fed (dog) or landed (man) mosquitoes per night, according to date and site

From: Risk of canine and human exposure to Dirofilaria immitis infected mosquitoes in endemic areas of Italy

Sites

Date

Bites/Night/Host

ERI(*)

Days(§)

 

dd/mm/yy

Dog

Man

%

Dog

Man

Site B

29/07/98

84

9.5

0.278

4

38

Padova

10/08/98

64

2

0.111

14

450

 

20/08/98

7

1

0.111

129

901

 

26/08/98

3

0

0.111

300

-

 

23/09/98

0

0

0.421

-

-

Site C

23/06/99

20

4.5

0.38

13

58

Rovigo

29/06/99

6

10.5

0.38

44

25

 

14/07/99

2

1

0.38

132

263

 

27/07/99

16

21.5

0.38

16

12

 

19/08/99

7

1.5

0.38

38

175

 

15/09/99

0

0

0.38

-

-

  1. (*) ERI = estimated rate of infection. For site C, ERI was calculated in this study and adjusted for Cx pipiens mean mortality; for site B, ERI is from [11].
  2. (§) minimum number of days to come in contact with a D. immitis infected mosquito.