[A Candida krusei epidemic in a hematology department]

Candida krusei is a rarely isolated opportunistic yeast which we observed in 12 immunocompromised patients over a four-month period. Epidemiologic investigations identified the source of the organism in a bottle containing contaminated lemon juice in the hospital kitchen. Since elimination of the source we found the yeast in only 3 additional cases (4% vs. 0.4% of all patients with positive yeast cultures) over 11 months. Upper respiratory tract was the most common site of colonization. 6 of 15 patients developed infections with C. krusei (4 pneumonia, 1 disseminated infection and 1 localized). 4 died from fungal infections. - The importance of infection control institutions for efficient epidemiologic investigation of nosocomial infections is discussed.