[Biodiversity of mycocoenoses of oral cavity, throat and nose of children aged 6-15 years].
The purpose of this study was analysis of biodiversity of mycoflora in selected ontocenoses of healthy children. The material for the study was consisted of swabs taken from oral cavity, pharynx, and nose of healthy children: 128 girls and 142 boys. The material for the study was collected in May and November, dividing the children into two age groups: 6-9 years and 10-15 years. A total of 13 species representing 5 genera: Candida, Rhodotorula, Saccharomyces, Saccharomycopsis and Trichosporon were found in the material studied. The dominant group were yeasts-like fungi. Candida albicans, the basic etiological factor of the majority of mycotic diseases in humans, was found most frequently. Appearance of Candida glabrata and C. krusei is a reason for concern, as increasing numbers of their strains are resistant to basic antimycotic drugs, as well as relatively frequent appearance of Trichosporon beigelii, Saccharomycopsis capsularis, and Saccharomyces sp.--the fungi showing increasing expansiveness and enzymatic activity. The fungi were most frequently isolated from oral cavity and pharynx. No phenological changes in fungal prevalence were found in the pharynx. In the other ontocenoses fungi were found much more frequently in the spring than in the autumn. Regardless of the season, the largest fluctuations in biodiversity and numbers of the studied mycocoenoses were observed in the oral cavity and nose--the organs that come into direct contact with environmental contaminants and many agents of transmission for potentially pathological fungi.
Ejdys
Elzbieta
E
Zakład Mikologii, Uniwersytet Warmińsko-Mazurski, ul. Oczapowskiego 1A, 10-719 Olsztyn-Kortowo. elzbieta.ejdys@uwm.edu.pl
D000293:Adolescent; D044822:Biodiversity; D002175:Candida / Q000145:classification / Q000302:isolation & purification; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009055:Mouth / Q000382:microbiology*; D009666:Nose / Q000382:microbiology*; D010614:Pharynx / Q000382:microbiology*; D012621:Seasons; D015003:Yeasts / Q000145:classification* / Q000302:isolation & purification