Preventive efficacy of a topical combination of fipronil – (S)-methoprene – eprinomectin – praziquantel against ear mite (Otodectes cynotis) infestation of cats through a natural infestation model

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Table 4.

Comparison of control and treated cats at Day 28.

Day 28	Sex	Right ear			Left ear
Control cats		Cerumen	Pruritic reflex	Number of parasites	Cerumen	Pruritic reflex	Number of parasites
				Microscopic^°°			Microscopic^°°
4117	F	3	2	8	2	1	9
6504	F	2	0	21	1	1	19
6506	F	2	0	12	2	2	6
1121	F	2	1	11	2	1	1
9165	MC	2	1	13	2	2	19
7448	F	2	2	5	2	2	5
	Average	2.17		70	1.83	6/6 cats	59
		6 cats	4 cats	6 cats	6 cats		6 cats
Treated cats	Sex	Cerumen	Pruritic reflex	Microscopic^°°	Cerumen	Pruritic reflex	Microscopic^°°
8261	F	0	0	0	0	0	0
7138	F	1	0	0	1	0	2
2823	F	1	0	0	0	0	0
2787	MC	0	0	0	0	0	0
6533	MC	1	0	0	0	0	2
6532	MC	1	0	0	1	0	1
	Average	0.67	0	0	0.33	0	5
		4 cats	0 cat	0 cat	2 cats	0 cat	3 cats

Cerumen: 0 = absent; 1 = present but clear and low volume; 2 = moderate volume and brown; 3 = abundant dark.

Ear reflex: 0 = absent; 1 = present and very low; 2 = mild; 3 = pronounced.

^°°

Parasites microscopic count: number in the ear washing product.

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