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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.