Fig. 1From: A field trial of a fixed combination of permethrin and fipronil (Effitix®) for the treatment and prevention of flea infestation in dogs living with sheepDesign of the study. Time points of flea counting (arrows) and administration of the fixed combination of 54.5% permethrin and 6.1% fipronil (group A dogs), 1% deltamethrin (group A sheep), sham treatment (group B dogs) or placebo (group B sheep) (stars)Back to article page