Analysis On Pathogenic Fungi Of The Superficial Mycoses In Tianjin

Objective:To investigate the prevalence and pathogenic fungi species of superficial mycoses of Tianjin district.Analyzed the superficial mycoses and pathogenic fungi according to the age,season,and gender.Use the epidemiological data to promote the understanding of superficial mycoses and to guide the clinical workMethods:Direct microscopic examination with KOH%and culture were performed on samples from patients with clinical suspected dermatophytoses in hospital from Dec 2006-Dec 2007.Specimens were cultured in agar,26±1℃,7-10 days, according to the speed of colony growth,morphology,pigment make the identification.Culture-positive pathogens were distributed according to age,gender and other index.Then use SPSS 8.0 statistical software for statistical analysis of the results.Results:The superficial mycoses include tinea capitis,tinea corporis,tinea cruris, Tinea mannum et pedis and onychomycosis,tinea versicolor,malassezia furfur folliculitis,candidal intertrigo,candidal pargnychia,as well as including genital mycosis of the 10,011 cases.Tinea cruris to occupy the first,total of 4 370 cases, accounting for 43.7%;followed by tinea corporis 1 909 cases,accounting for 19.1 %;748 cases of tinea pedis,accounting for 7.5%;onychomycosis 719 cases, accounting for 7.2%;621 cases of tinea versicolor,accounting for 6.2%;611 cases of tinea capitis,accounting for 6.1%;537 cases of Tinea manus,representing 5.4%; 201 cases of genital mycosis,accounting for a total of 2.0%,195 cases of malassezia furfur folliculitis,.accounting for 1.9%,70 cases of candidal intertrigo,accounting for 0.7%,30 cases of candidal paronychia,accounting for 0.3%.Pathogenic fungi isolated from 7100 cases.Including Trichophyton rubrum 5 045 strains(71.1%),rank first,followed by Pityrosporoii ovale/orbiculare 594(8.4%),Microsporum lanosum 562(8.0%),Candida albicans 499(7.0%),M.sp 156(2.2%), Epidermophyton floccosum 65(0.9%);Trichophyton gypseum to be 53(0.7%), Candida globrata 51(0.7%),Microsporum gypseum 33(0.5%),Candida tropicalis 27(0.4%),Candida krusei 15(0.2%).Superficial mycoses and superficial mycoses pathogens changed with age in the 15～35 years old,36～55 years of age reached the peak,then gradually decreased.Superficial mycoses and pathogens in the qr1,4 lower than the qr2,3 quarter,and the highest quarter is section 3.The superficial mycoses and the pathogens number of the males is different from females.Conclusion:In Tianjin region,tinea corporis and tinea corporis was the most superficial mycoses.Dermatophytes to the most pathogenic fungi,Trichophyton rubrum strains to occupy first.Trichophyton gypseum shows a low constituent ratio in the region,show the unique geographical features Candida albicans to occupy a higher status,however,constitute more than before the decline in coverage.Microsporum lanosum shows a low constituent ratio in the region it is different from prior sudies.The constitute ratio of Candida globrata was significantly higher than than the previous survey,it need to be studied further.Superficial mycoses and the incidence of pathogenic fungi was effected by the factors of age,season,gender and so on,15～35-year-old and 36～55-year-old age group,and qr2,3,show the high incidence.While in male,the numbers of superficial mycoses and separated pathogenic fungi is different from female.In Tianjin region, superficial mycoses and the distribution of pathogenic fungi generally with the national trends,but has its own characteristics.