Abstract
A case of kerion caused by Microsporum canis, which appeared in a 16-month-old girl, was reported. From the soil collected at the patients garden, M. gypseum, M. cookei and Trichophyton ajelloi were isolated by the hair-baiting method. From 1952 to November, 1976, 22 human cases of M. canis-infection were diagnosed at the Dermatology Clinic, Faculty of Medicine, University of Tokyo, and 217 animal cases (164 cats and 53 dogs) at the Veterinary Hospital, University of Tokyo. It was indicated that the human cases have been increasing in number especially since 1972 and while there was no prevailing increase in animals, M. canis-infections are always present in cats and dogs. In addition, clinical features of the human cases were presented in detail.
