Efficacy and Safety of a Permethrin-Fipronil Spot-On Solution (Effitix®) in Dogs Naturally Infested by Ticks in Europe

Table 3

Number of live ticks per dog for the Intention to Treat population on day 0.

	Adults		Larvae		Nymphs
	Rhipicephalus spp.
	P/F	P/I	P/F	P/I	P/F	P/I
	21	10	0	0	3	1
Mean ± SD	57.4 ± 162.0	8.6 ± 5.7	NA	NA	21.3 ± 12.5	23.0 ± NA
	Ixodes ricinus
	P/F	P/I	P/F	P/I	P/F	P/I
	85	39	0	0	3	1
Mean ± SD	5.0 ± 3.3	4.2 ± 2.6	NA	NA	1.0 ± 0.0	1.0 ± NA
	Ixodes hexagonus
	P/F	P/I	P/F	P/I	P/F	P/I
	18	9	4	2	16	4
Mean ± SD	7.3 ± 7.9	3.1 ± 2.6	7.8 ± 6.6	8.5 ± 2.1	3.6 ± 3.7	4.8 ± 3.6
	Dermacentor reticulatus
	P/F	P/I	P/F	P/I	P/F	P/I
	12	5	0	0	0	0
Mean ± SD	4.3 ± 6.6	1.8 ± 1.1	NA	NA	NA	NA
	Other
	P/F	P/I	P/F	P/I	P/F	P/I
	1	0	0	0	0	0
Mean ± SD	1.0 ± NA	NA	NA	NA	NA	NA

NA: not applicable, P/F: permethrin-fipronil spot-on (Effitix), P/I: permethrin-imidacloprid spot-on (Advantix), SD: standard deviation, : number of cases. If the number of ticks per sample exceeded 30, the laboratory sorted the ticks first according to the genus (Ixodes, Dermacentor, Rhipicephalus, and others) and then performed a species identification in a maximum of 30 randomly selected ticks per genus.