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Prevalence and causative agents of tinea capitis among primary school students in Erzincan, Turkey

Abstract number: R2466

Ayyildiz A., Hocaoglu G., Aktas A.E., Atasoy M.

Objective: Tinea capitis is a worldwide-spread infection of the scalp and hair caused by dermatophytes. Children between 3 and 9 years old are at highest risk and outbreaks have been noted in schools and day care centres. A variety of clinical presentations is recognised as being either inflammatory or non-inflammatory and is usually associated with patchy alopecia. Since the clinical appearances can be subtle, mycological examinations should be done to ensure accurate diagnosis. In the present study we aimed to determine the prevalence and the agents of tinea capitis among the primary school students in Erzincan, Turkey.

Method: A screening study was performed in 94 schools, covering a total of 19173 children with 9827 boys and 9346 girls, aged 6–14 years. Of the students 13855 were going to the schools in the city centre, and the others (5318 student) in the rural area.

All children were clinically examined and selected on the basis of symptoms indicative of tinea capitis infection. From both clinically evident and suspected cases skin scraping and hair samples were taken for microscopy and culture in order to confirm the diagnosis.

Samples were cultured onto Sabouraud Dextrose agar, incubated at 30°C for up to 30 days and checked for fungal growth every week. At the same time, direct examination with KOH-DMSO was made to detect fungal structures. Grown isolates were identified using conventional methods.

Results: According to the clinical examination, 34 students were pre-diagnosed as tinea capitis, but only the 14 of them (9 boys and 5 girls) were confirmed by microscopy. In 11 of the cases, the clinical form was tinea capitis superficialis, and in the remaining 3 it was Kerion celsi. Most of the tinea capitis cases were from rural regions (11 out of 14). Causative agents were isolated in only 7 of the 14 samples of which microscopy were positive. The isolated 7 strains were identified as follows: Two were M. canis (28.5%), 2 were M. audouineii (28.5%), 2 were T. tonsurans (28.5%) and 1 was T. violaceum (14.5%).

Conclusion: In the study tinea capitis prevalence among the primary school students in Erzincan province was found as 0.073%. This result was generally in accordance with the previous studies made in the same region. But T. tonsurans was the first isolate in Eastern Anatolian while it was not reported as a causative agent in the previous studies. In contrary to the previous studies T. schönleinii could not be isolated in the present study.

Session Details

Date: 19/04/2008
Time: 00:00-00:00
Session name: 18th European Congress of Clinical Microbiology and Infectious Diseases
Subject:
Location: Barcelona, Spain
Presentation type:
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