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Table 4 Severity of pruritus of people in contact with the dogs. Range, median and mean pruritus, assessed by a 10 cm visual analogue scale, of eight people living and/or working on the same premises where dogs were treated with either 54.5% permethrin-6.1% fipronil combination or were sham-treated and sheep were treated with either 1% deltamethrin or placebo at the beginning of the trial (day 0) and after 14, 28, 56 and 84 days

From: A field trial of a fixed combination of permethrin and fipronil (Effitix®) for the treatment and prevention of flea infestation in dogs living with sheep

  Day 0 Day 14 Day 28 Day 56 Day 84
Range 0–10 0–1.3 0–0.9 0–0.1 0–0.1
Median 0 0 0 0 0
Mean 2.19 0.20 0.21 0.03 0.01