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Table 2 Efficacy of an imidacloprid/flumethrin collar applied on Study Day 0 against Ctenocephalides felis felis on repeatedly infested cats

From: Prophylactic treatment of flea-infested cats with an imidacloprid/flumethrin collar to forestall infection with Dipylidium caninum

Study day

Geometric mean number of fleas recovered

Efficacy (%)

Untreated control cats

Collared cats*

8

76.8

0.1

99.9

15

74.5

0

100

22

62.5

0

100

29

73.8

0

100

  1. * The flea counts of the collared group of cats differed statistically significantly (p < 0.05) from those of the untreated control group of cats on all post-treatment assessment days.