Age and Genderwise Seasonal Distribution of Dermatophytosis in a Tertiary Care Hospital, Puducherry, India

Balamuruganvelu, S; Reddy, Sreenivasalu V; Babu, G. Sunil Kumar

doi:10.7860/jcdr/2019/39515.12615

Cited by 8 publications

(9 citation statements)

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“…However, there was no difference in the types of dermatophytes among the different age groups. A population-based study from Iceland identified a higher prevalence of dermatophytes among male patients [ 21 ] and in India dermatophytosis was associated with a male to female ratio of 1.7:1 [ 22 ]. In a recent study from Egypt, male predominance was also noted [ 4 ].…”

Section: Discussionmentioning

confidence: 99%

“…One study from Turkey showed the predominant organisms to be Trichophyton rubrum (62.2%), and T. mentagrophytes (16.9%) [ 30 ]. In one study from India, Trichophyton species were found to be more widely isolated [ 22 ]. Researchers worldwide have studied various factors, such as climate, temperature, humidity, personal hygiene, xerosis, age, and socioeconomic factors that affect the presence of dermatophytes in humans [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

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Epidemiology of Dermatophytes Isolated from Clinical Samples in a Hospital in Eastern Saudi Arabia: A 20-Year Survey

Alshehri

Alamri

Rabaan

et al. 2021

J Epidemiol Glob Health

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Background Dermatophytes are group of fungi that cause superficial infections via enzymes that degrade keratin in human skin. Several factors, including climate, gender, age, lifestyle, human migration, cultural habits, and socioeconomic status influence the prevalence of dermatophyte infections. We analyzed the prevalence of dermatophyte isolates in a hospital in Eastern Saudi Arabia from 2000 to 2019. Methods The data on fungal cultures were obtained from the Laboratory Information System of the Mycology Laboratories at Johns Hopkins Aramco Healthcare, and were used for the analysis. Fungal isolates were examined microscopically for the presence of specialized hyphal structures and conidia. The Vitek® MS microbial identification system (biomerieux) was used if the culture type was not identified microscopically. Results Among the 10,021 samples analyzed, 3040 (30.33%) were positive for fungi and only 398 (3.97%) were dermatophytes. Microsporum species was the most common dermatophyte accounting for 50.5% (n = 201) followed by trichophyton with 36.9% (n = 147). The most common positive samples were scrapping (251, 63%) and hair (68, 17%). Culture positivity relative to the age groups revealed a cluster of positive dermatophyte species in children < 10 years of age with 215 (54%) of all cases and among 10–19 years of age with 60 (15) of the cases (p < 0.001). Microsporum species were the prevalent dermatophytes in patients < 10 years of age, while Epidermophyton species were the most frequent dermatophyte species in age groups 10–19, 20–29, and 30–39 years. However, Trichophyton species were the most frequent dermatophyte species in individuals 70–79 years. The percentage of Microsporum and Trichophyton species decreased significantly over time (p < 0.001). In addition, there was a significant seasonal variation in relation to Trichophyton species. A comparison between the most frequent species showed that there was no difference in relation to gender, but there was a difference in relation to the specimen type and age group. Conclusion Dermatophytosis was common among children and adolescent with the most common samples were scrapping and hair. There was a significant reduction in Microsporum and Trichophyton species over time.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Epidemiology of Dermatophytes Isolated from Clinical Samples in a Hospital in Eastern Saudi Arabia: A 20-Year Survey

Alshehri

Alamri

Rabaan

et al. 2021

J Epidemiol Glob Health

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“…According to a cross sectional study conducted on patients who attended the Dermatology outpatient department, showed nail specimens positive by culture, Trichophyton mentagrophytes was the major isolate followed by Trichophyton tonsurans and Trichophyton rubrum (Balamuruganvelu, Reddy and Babu 2019), while the study by - Gupta et al (2018), highlighted a rise in dermatophyte infection caused T. verrucosum which is a zoophilic dermatophyte. The most sequential transmission of dermatophytosis to humans is zoophilic, anthropic and geophilic (Brown et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Identification of Dermatophyte Fungi Causing Tinea pedis and Tinea unguium in Malabero Coastal Communities, Bengkulu

et al. 2021

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Dermatophytosis cases have increased significantly in various countries, more than 20-25% of the population were infected by superficial fungal infections. Malabero urban village is a coastal area in Bengkulu city with high temperature and humidity. The daily activities of residents in the area are mostly fishermen, so they are in a watery or wet environment for approximately 12 hours every day. Hence, this research aimed to identify dermatophyte fungi that caused Tinea pedis and Tinea unguium from these coastal communities. The diagnosis of Tinea was based on symptoms and physical examination of the lesion area. Furthermore, specimen collection was carried out by scraping the lesion area, then examined with 20% KOH and fungal culture on sabouraud dextrose agar media. Subjects included 79 people who had symptoms of Tinea pedis and 33 people with symptoms of Tinea unguium. The results of dermatophyte fungi identification were obtained, namely Trichophyton mentagrophytes, Trichophyton rubrum, Trichophyton tonsurans, and Aspergillus niger. Our conclusion is the most identified dermatophyte species is Trichophyton mentagrophytes.

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“…Balamuruganvelu et al observed higher incidence of Tinea ungium in colder months which is similar to this study. 10 Because of long span of cold climate in this part of country many patients in this study wore woolen garments in winters, which were often unwashed for weeks creating a damp environment favorable for proliferation of dermatophytes.…”

Section: Seasonal Distributionmentioning

confidence: 99%

“…This study shows that the dermatophytic infection is predominant in the adult age group of 18-32 years (35.29%), which is similar to the studies done by Tonita et al and Balamurgagunvelu et al which showed the most common age group for dermatophytosis as 21-30 years (22.7%) and 21-30 years (27.5%) respectively. 10,14 The reason for this may be due to increased level of physical activity in this particular age group thus leading to excessive sweating which favours the growth of dermatophytes.…”

Section: Clinical Manifestation In Relation To Agementioning

confidence: 99%

Prevalence and spectrum of dermatophytes in patients attending a tertiary care hospital Srinagar, Kashmir

2021

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Background: Dermatophyte infections are a global health problem but very neglected in Kashmir. India. This work aimed at determining prevalence and spectrum of dermatophytosis isolated from patients attending tertiary care hospital Srinagar. Kashmir.Methods: A total of 510 samples of skin, hair and nail scrapings were collected and processed using standard microscopy (KOH) and cultural methods as per the standard protocol.Results: Out of 510 samples collected, 272 (53.33%) patients were confirmed cases of dermatophytosis (confirmed clinically and on fungal culture). The prevalence of dermatophytosis was significantly associated with age groups of participants with higher infection among those aged 18-32 which accounted for 35.29%, followed by age group 1-17 with 30.14%. Out of 510 samples, 110 ( 21.56%) were both KOH (microscopy) and culture positive, 162 (31.76%) cases were only culture positive and 130 (25.49%) clinical samples were only positive for fungal elements on microscopy. 133 (26.07%) fungal isolates were obtained which included both dermatophyte and non-dermatophytic fungi(excluded in this study). T. mentagrophytes had highest distribution 40.44% among dermatophytes species and T. Unguium 114 (41.96%) accounted for most common site for dermatophytic infections. Poor hygiene was predominant risk factor in 143 cases (52.57%). Patients from lower socioeconomic status were affected more than others (34.92%).Conclusions: In this study we have focused to determine the prevalence, clinical pattern and pathogenic profile of dermatophytosis according to the age, gender, site, and fungal distribution. Improvization of these conditions more accurately can result in decreased incidence of dermatophytosis in this area.

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Age and Genderwise Seasonal Distribution of Dermatophytosis in a Tertiary Care Hospital, Puducherry, India

Cited by 8 publications

References 0 publications

Epidemiology of Dermatophytes Isolated from Clinical Samples in a Hospital in Eastern Saudi Arabia: A 20-Year Survey

Epidemiology of Dermatophytes Isolated from Clinical Samples in a Hospital in Eastern Saudi Arabia: A 20-Year Survey

Identification of Dermatophyte Fungi Causing Tinea pedis and Tinea unguium in Malabero Coastal Communities, Bengkulu

Prevalence and spectrum of dermatophytes in patients attending a tertiary care hospital Srinagar, Kashmir

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