Aspects of colonization of the canine skin with bacteria are reviewed.
Owing to variability in sampling techniques, anatomical sites involve
d and lack of temporal studies, there is still controversy as to which
bacteria are residents or transients on the canine skin. The establis
hment of the cutaneous flora is determined by the ability of bacteria
to adhere to canine corneocytes, to use available nutrients from skin
secretions and to resist challenge from competing bacteria. Variations
in humidity and temperature due to environment, skin folds or differe
nces in the haircoat are also likely to have an effect. Much research
has focused around Staphylococcus intermedius, the main pathogen of th
e canine skin but its cutaneous residency status remains questionable.
Pathological conditions such as atopy and seborrhoea favour the colon
ization of S. intermedius and predispose to infection. Recent studies
indicate that bacterial interference as a method of preventing coloniz
ation of pathogenic staphylococci may be feasible.