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[An investigation of Trichophyton tonsurans infection in university students participating in sports clubs].

[Article in Japanese]

Author information

1
School of Health and Sports Science, Juntendo University, Inbamura, Inba-gun, Chiba 270-1695, Japan.

Abstract

BACKGROUND:

The prevalence of the infectious disease Trichophyton tonsurans is rapidly increasing in Japan, particularly in athletes of these sports such as judo. Recognition of the current prevalence of this disease not only in athletes of these sports but also in other athletes is important to prevent its further spread.

SUBJECTS AND METHODS:

In November, 2002 we used a questionnaire survey and hairbrush culture to identify hair dermatophyte carriers among 31 members of a university judo club. The dermatophyte carriers received antimycotic therapy, and all participants were taught infection prevention. Repeat screenings of the judo club members were performed 9 times over the following 18-month period. In addition, from November, 2003 to February, 2004 we screened 466 students of other university sports clubs for hair dermatophytes using the questionnaire survey and hairbrush culture technique.

RESULTS:

(1) Initially, we identified 11 (35%) of 31 members of the judo club as dermatophyte-positive by hairbrush culture. These dermatophyte carriers received antimycotic therapy, and implementation of infection prevention measures by all club members was initiated. Members continued to participate in matches and group judo practices under daily instructions for infection prevention. Tests performed on 9 occasions over a 1.5-year period following the initial testing showed all members of the judo club to be dermatophyte-negative and with no signs of tinea corporis. (2) Using a questionnaire and the hairbrush culture technique, we screened 466 members of other sports clubs, including 138 students who had weekly judo lessons and 185 students who were living in a dormitory. All were dermatophyte-negative by hairbrush culture, and no participant acknowledged any history or presence of eruptions suggestive of tinea.

CONCLUSIONS:

Our investigation suggests that the current spread of T. tonsurans infection in Japan is occurring mainly in athletes of high-contact sports such as judo. The successful control of this disease by the judo club in our university suggests that spread of the infection can be prevented without requiring that training be discontinued in a group fully informed about the disease.

PMID:
15864258
[Indexed for MEDLINE]
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