Efficacy of fluralaner chewable tablets (Bravecto®) against Asian longhorned tick (Haemaphysalis longicornis) infestations of dogs

Table 3 Study 2, live Haemaphysalis longicornis tick counts

	Untreated control dogs (n = 9)^a			Fluralaner-treated dogs (n = 10)			% efficacy	Test statistic^b
	Attached	Free	Total	Attached	Free	Total	Fluralaner vs. control	Test statistic^b
Day 2 counts
Arithmetic mean	30.2	0.2	30.4	0.0	0.0	0.0	100.0	t₁₈ = 14.99	P < 0.0001
Standard deviation	6.6	0.4	6.4	0.0	0.0	0.0
Median	30.0	0.0	30.5	0.0	0.0	0.0
Range	19–38	0–1	20–38	0–0	0–0	0–0
Day 30 counts
Arithmetic mean	20.1	0.0	20.1	0.0	0.0	0.0	100.0	t₁₇ = 5.09	P < 0.0001
Standard deviation	12.5	0.0	12.5	0.0	0.0	0.0
Median	18.0	0.0	18.0	0.0	0.0	0.0
Range	1–40	0–0	1–40	0–0	0–0	0–0
Day 60 counts
Arithmetic mean	20.3	0.1	20.4	0.0	0.0	0.0	100.0	t₁₇ = 6.79	P < 0.0001
Standard deviation	9.4	0.3	9.6	0.0	0.0	0.0
Median	22.0	0.0	22.0	0.0	0.0	0.0
Range	1–33	0–1	1–33	0–0	0–0	0–0
Day 90 counts
Arithmetic mean	18.7	0.1	18.8	0.0	0.0	0.0	100.0	t₁₇ = 6.75	P < 0.0001
Standard deviation	8.7	0.3	8.8	0.0	0.0	0.0
Median	18.0	0.0	18.0	0.0	0.0	0.0
Range	1–30	0–1	1–30	0–0	0–0	0–0

^aTen dogs on Day 2; one untreated control dog was removed on Day 22 following a seizure
^bBased on 18 degrees of freedom (df) in the denominator for the analysis of the Day 2 counts and 17 df in the denominator for each analysis of the subsequent count days

ISSN: 1756-3305