Dataset Information

Epidemiology of Dermatophyte and Non-Dermatophyte Fungi Infection in Ethiopia.

ABSTRACT: Background:Dermatophytosis represents one of the common infectious diseases worldwide and it is a major public health problem around the globe. The disease causes considerable morbidity and still continues to increase especially in developing countries. Objective:This study was undertaken to determine the prevalence of dermatophytes and the spectrum of fungal agents in patients attending Rank Higher Specialized Dermatology Clinic. Methods:A cross-sectional study has been conducted, in which 318 samples from 318 suspected patients were collected. Samples include hair, nail, and skin. A portion of each sample was examined microscopically and the remaining portion of each sample was cultured onto plates of Sabouraud's dextrose agar containing chloramphenicol with and without cycloheximide. Isolates were identified by studying the macroscopic and microscopic characteristics of the colonies. Results:Tinea capitis was the predominant clinical manifestation accounting for 53.4% of the cases. Patients with age group 1-14 years were more affected. Of 318 samples, fungi were detected in 133 (54.4%) by direct wet mount while 148/315 (46.5%) of them were culture positive. From these 72/148 (46.8%) were dermatophytes. T. tonsurans was the most common pathogen in tinea capitis, whereas T. mentagrophytes was the most common pathogen in tinea corporis. Among dermatophyte isolates, T. tonsurans 29/72 (40.2%) was the most common cause of infection. Among non-dermatophyte molds, Cladosporiumspp. 21/63 (33.3%) was predominant isolate followed by Neoscytalidim dimidatum 11/63 (17.4%) and Alternariaspp. 9/63 (14.2%), respectively. Yeasts also account for 13 (8.7%) of the total suspects of dermatophytosis. Conclusion:In this study, the prevalence of dermatophytes was higher in tinea capitis 46/72 (63.8%) and T. tonsurans 29/72 (40%) was the dominant-isolated dermatophyte. Recovery of a large number of dermatophytes and non-dermatophyte fungi in our study showed that non-dermatophyte fungi are emerging as important causes of dermatophytosis warranting further intensive epidemiological studies that have public health significance are needed.

SUBMITTER: Araya S

PROVIDER: S-EPMC7152551 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Epidemiology of Dermatophyte and Non-Dermatophyte Fungi Infection in Ethiopia.

Araya Shambel S Tesfaye Betelhem B Fente Desalegn D

Clinical, cosmetic and investigational dermatology 20200408

<h4>Background</h4>Dermatophytosis represents one of the common infectious diseases worldwide and it is a major public health problem around the globe. The disease causes considerable morbidity and still continues to increase especially in developing countries.<h4>Objective</h4>This study was undertaken to determine the prevalence of dermatophytes and the spectrum of fungal agents in patients attending Rank Higher Specialized Dermatology Clinic.<h4>Methods</h4>A cross-sectional study has been co ...[more]

PMID: 32308463

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Project description:Giardia duodenalis is a species complex consisting of multiple genetically distinct assemblages. The species imposes a major public health crisis on developing countries. However, the molecular diversity, transmission dynamics and risk factors of the species in these countries are indeterminate. This study was conducted to determine the molecular epidemiology of G. duodenalis infection in asymptomatic individuals in Southern Ethiopia.From March to June 2014, fresh stool samples were collected from 590 randomly selected individuals. Socio-demographic data were gathered using a pre-tested structured questionnaire. The genotyping was done using triosephosphate isomerase gene-based nested polymerase chain reaction and DNA sequencing. The genetic identity and relatedness of isolates were determined using the basic local alignment search tool and phylogenetic analysis. Risk factors associated with G. duodenalis infection were analysed using binary and multinomial logistic regression models.The results showed that 18.1% (92/509) of the study subjects were infected by G. duodenalis. Among the isolates, 35.9% (33/92) and 21.7% (20/92) were sub-typed into assemblages A and B, respectively, whereas 42.4% (39/92) showed mixed infections of A and B. Most of the assemblage A isolates (94%,31/33) were 100% identical to sequences registered in GenBank, of which the majority belonged to sub-assemblage AII. However, the high genetic variability and frequency of double peaks made sub-genotyping of assemblage B more problematic and only 20% (4/20) of the isolates matched 100% with the sequences. The risk factors of age (P?=?0.032) and type of drinking water source (P?=?0.003) both showed a significant association with the occurrence G. duodenalis infection.This study established the endemicity of G. duodenalis in Southern Ethiopia. Infection with assemblage A was more frequent than with assemblage B, and the rate of infection was higher in children and in municipal/tap and open spring water consumers than the other groups. Sub-typing of assemblage B and determining the origin of double peaks were challenging. The present study confirms the need for further inclusive studies to be conducted focusing on sub-types of assemblage B and the origin of heterogeneity.

Dataset Information

Epidemiology of Dermatophyte and Non-Dermatophyte Fungi Infection in Ethiopia.

Publications

Epidemiology of Dermatophyte and Non-Dermatophyte Fungi Infection in Ethiopia.

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