Evaluation of Residual Antibacterial Effects on Canine Skin Surface and Hairs Following Treatment with Five Commercial Mousse Products Against Staphylococcus Pseudintermedius in Vitro

The study evaluated the residual antibacterial effects of five commercial mousse products on both the skin surface and hairs of short- and long-haired dogs against Staphylococcus pseudintermedius. The products were tested on 15 short-haired and eight long-haired dogs. Results showed that mousses containing 2% chlorhexidine and 2% miconazole, 3% chlorhexidine and 0.5% climbazole, and 2% chlorhexidine and 1% ketoconazole produced significant bacterial inhibition on both skin and hairs in short-haired dogs until Day 14. In long-haired dogs, these products inhibited bacterial growth on hairs until Day 14, but skin swabs from mousse 1 only showed inhibition until Day 4. The study concluded that evaluating hairs might overestimate bacterial inhibition on the skin surface, particularly in long-haired dogs.