Vectra 3D (dinotefuran, pyriproxyfen and permethrin) prevents acquisition of Borrelia burgdorferi sensu stricto by Ixodes ricinus and Ixodes scapularis ticks in an ex vivo feeding model

Table 2 Anti-feeding efficacy of DPP-treated dog hair against Ixodes ricinus and Ixodes scapularis ticks

Day of exposure	Ixodes ricinus^a				Ixodes scapularis^a
	Total number of fed ticks (%) in non-treated control groups	GM number of fed ticks ± SD		Anti-feeding efficacy (%)	Total number of fed ticks (%) in non-treated control groups	GM number of fed ticks ± SD		Anti-feeding efficacy (%)
	Total number of fed ticks (%) in non-treated control groups	Non-treated control groups	DPP-treated groups	Anti-feeding efficacy (%)	Total number of fed ticks (%) in non-treated control groups	Non-treated control groups	DPP-treated groups	Anti-feeding efficacy (%)
2	22 (36.7)	6.4 ± 1.3	0	100	24 (40.3)	6.7 ± 2.4	0	100
7	17 (28.3)	5.2 ± 0.9	0	100		N/A	N/A	N/A
14	18 (30.0)	5.4 ± 1.3	0	100	22 (36.7)	5.9 ± 3.1	0	100
21	15 (25.0)	4.7 ± 0.9	0	100		N/A	N/A	N/A
28	12 (20.0)	3.3 ± 2.1	0	100	25 (41.6)	7.2 ± 1.0	0	100
35	16 (26.7)	4.9 ± 0.8	0	100		N/A	N/A	N/A

^aOnly females were considered during the assessment. Each feeding chamber contained 15 female ticks
GM geometric mean, SD standard deviation, / = no experiment conducted for Ixodes scapularis due to limited tick availability

ISSN: 1756-3305