SCREENING OF THE SCALP DERMATOPHYTOSIS INFECTIONS OF BABYLON PROVINCE AND INVESTIGATION OF ITS ABILITY TO SECRETE PROTEASE

Abstract

This research was conducted in the laboratory of the College of Education at Al Qadisiyah University and the College of Engineering Technologies at Al-Qasim Green University for the period 11/3/2022 until 4/6/2023 with the aim of investigating the fungi that cause ringworm of the head (Tinea captis). 125 samples were collected from patients visiting the dermatology consultation in Al-Hashimiya General Hospital and the private clinic of  Babil Governorate / Al-Musayyib for age groups between (1-30) years ,an foor  boath sexes (as the samples taken from  , The samples taken from the scalp included scales and hair, under the direct supervision of the specialist doctor. The samples were diagnosed by direct microscopic examination and the remaining part of the pathological samples were cultured on SDA supported with  Cycloheximide and Chloramphenicol. Through direct microscopic examination of the fungi, positive results were revealed in a rate of infection of 36% (125) samples, while positive results of laboratory culture were shown in a rate of 48.8% of the total 125 samples.

   The results of phenotypic examinations of the isolated skin fungi showed that they belong to the two genera, namely Microsporum and Trichophyton. The results found that the genus Microsporum is one of the most diagnosed specimens compared to the genus Trichophyton, the least of the fungal specimens, and from which two species of Microsporum were isolated, namely Microsporum. Canis and Microsporum. gypsum, where Microsporum.canis had the highest percentage (44.44%) and the percentage of Microsporum gypsum (13.33%). As for the genus Trichophyton, four species were isolated from it: Trichophyton mentagrophytes, Trichophyton tonsuranis, Trichophyton rubrum, and Trichophyton verrucosum. Trichophyton mentagrophytes had the highest percentage (13.33%) and Trichophyton the lowest percentage. rubrum(4.44%).regard to protases secretion efficiency we found

Keywords: Microsporum. canis  ; Tinea captis; Molecular detection; ringworm