Mean adhesion counts of the seven Staphylococcus pseudintermedius strains to human and canine corneocytes. (A) Exponential phase. (B) Stationary phase. Bars represent the mean counts of adherent Staphylococcus pseudintermedius per 10 microscopic field images and the error bars indicate the 95% confidence intervals. The two strains of human origin are marked by an asterisk.