Preventive efficacy of Frontline® Combo and Certifect® against Dipylidium caninum infestation of cats and dogs using a natural flea (Ctenocephalides felis) infestation model

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Table 3.

Mean flea counts and insecticidal efficacies in cats.

Day	Group 1 – Untreated cats		Group 2 – Frontline^® Combo treated cats
	Arithmetic mean [min–max/SD]	Geometric mean¹	Arithmetic mean [min–max]²	Geometric mean¹,²
2	58.5 [35–81/58.5]	56.5	0 [0–0/0] (100%)	0 (100%)
9	64.8 [24–110/64.8]	58.6	0 [0–0/0] (100%)	0 (100%)
16	68.0 [25–121/68]	61.4	0 [0–0/0] (100%)	0 (100%)
23	51.2 [28–95/51.2]	47.4	0 [0–0/0] (100%)	0 (100%)
30	61.3 [42–105/61.3]	58.7	0.2 [0–1/0.4] (99.7%)	0.1 (99.8%)

Group 2 differed statistically significantly (p < 0.05) from the untreated control Group 1 on all post-treatment assessment days.

% of efficacy (XX%).

SD = standard deviation.

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