Abstract
A statistical survey of 114 cases of Microsporum canis infection in Nagasaki prefecture from 1977 to 1986 was reported. A higher incidence was noted among patients under the age of 10. Sex ratio was 52 (male) : 62 (female). An increasing tendency of M. canis infection has been noted during the last 10 years. There has been no seasonal deviation in occurrence. Tinea corporis was seen in 51 cases (43.2%), followed by tinea capitis in 45 cases (38.1%), kerion Celsi in 19 cases (16.1%), tinea unguium in 2 cases, and tinea pedis in one case. Familial infection was seen in 16 family groups with a total of 35 cases. The infection source was most often considered to be cats. Twelve strains of (-) mating type Nannizzia otae, teleomorph of M. canis, were confirmed after confrontation with N. otae tester strains, VUT77054 and VUT77055 on niger seed agar.
