An Epidemiologic Study of Dermatophytes in Kinki and Chu-Shikoku Districts
1980 Volume 21 Issue 4 Pages 215-220
Details
1980 Volume 21 Issue 4 Pages 215-220
In the 10-year period from January 1969 to December 1978, a total of 2419 strains of dermatophytes were isolated in our clinics, located in Kinki district of Japan. The dermatophytes most frequently isolated was Trichophyton rubrum (83.8%), followed by T. mentagrophytes (12.9%), Microsporum canis (1.7%), Epidermophyton floccosum (1.1%), M. gypseum (0.4%). T. verrucosum (0.04%) and T. violaceum (0.04%), in this order. M. canis has increased since 1972, especially in children with Tinea capitis and Tinea corporis. However, in Tinea cruris, Tinea corporis and Tinea manus, T. rubrum was most common. In Tinea pedis, T. rubrum 75.0% and T. mentagrophytes 24.5% were isolated. In Tinea unguium, T. rubrum 89.3% and T. mentagrophytes 10.3% were isolated.
A comparison of the present data against our preceding data from 1960 to 1968 shows:
1. Emergence of M. canis, which has increased in recent years.
2. Emergence of a single strain of T. verrucosum.
3. Disappearance of T. schoenleinii.
4. A steady increase of T. rubrum.
5. E. floccosum remains the unchanged in number of isolates, but was reduced in incidence to the fourth because of suddenly increased M. canis. Statistics from other clinics in Kinki and Chu-Shikoku districts were comparable to ours.
