Discrimination of strains of Candida albicans isolated from deep and superficial sites by resistotyping

Resistotyping was used to characterise 106 strains of Candida albicans classified as to whether they came from deep or superficial infections. The data were analysed by logistic regression analysis. There was a statistically significant difference between the two groups of strains. After removal of variables by the log-likelihood method four resistotyping agents were found to predict source of strain: boric acid, benzalkonium chloride, malachite green and mercurochrome. Whilst there were phenotypic differences between strains isolated from deep and superficial sites it is not clear whether this strain represents different strain types or strain histories.