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Table 2 Summary total numbers of colony-reared T. infestans exposed to dogs, and their feeding success, recorded immediately after bioassays (n = 5 bioassays per dog)

From: Systemic insecticide treatment of the canine reservoir of Trypanosoma cruzi induces high levels of lethality in Triatoma infestans, a principal vector of Chagas disease

  Status of triatomines after bioassays
Treatment group Potentially exposeda Blood-fedb Fully engorged Semi-engorged Non-fedc
Treated (3 dogs each)
 Bravecto® 225 202 153 49 23
 Comfortis® 230 194 97 97 36
 NexGard® 227 181 87 94 46
 Total 682 577 337 240 105
Control (1 dog each)
 Bravecto® 75 65 33 32 10
 Comfortis® 75 65 36 29 10
 NexGard® 75 61 24 37 14
 Total 225 191 93 98 34
 Overall total 907 768 430 338 139
  1. aNumbers of bugs in the jar placed on the dog’s abdomen and given a choice to feed
  2. bClassified as exposed
  3. cClassified as unexposed