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

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)

	Status of triatomines after bioassays
Treatment group	Potentially exposed^a	Blood-fed^b	Fully engorged	Semi-engorged	Non-fed^c
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

^aNumbers of bugs in the jar placed on the dog’s abdomen and given a choice to feed
^bClassified as exposed
^cClassified as unexposed

ISSN: 1756-3305