A clinico‐etiologic correlation in tinea capitis

Jahangir, Muhammad; Hussain, Ijaz; Khurshid, Khawar; Haroon, Tahir Saeed

doi:10.1046/j.1365-4362.1999.00652.x

Cited by 40 publications

(44 citation statements)

References 18 publications

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“…This finding was not unexpected since this fungal pathogen has been isolated from cases of human ringworm in different localities of this country [26][27][28][29][30][31]. Our research was based on the analysis of samples originally collected for other purposes, i.e., to investigate skin diseases of parasitic origin in livestock.…”

Section: Discussionmentioning

confidence: 95%

“…verrucosum infection can be considered to be a cosmopolitan disease as, over time, it has been reported in livestock and sometimes in people in a number of different countries from all continents [5][6][7][8][9][10][11][13][14][15][16][17][18][19][20][21][22][23][24][25]. In Pakistan, several studies have documented the role of this fungal species in human ringworm cases [26][27][28][29][30][31]. However, data are still lacking concerning the animal reservoirs of this fungus.…”

Section: Introductionmentioning

confidence: 99%

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Trichophyton verrucosum infection in livestock in the Chitral district of Pakistan

Hameed

Riaz

Nawaz

et al. 2017

J Infect Dev Ctries

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Introduction: Trichophyton verrucosum belongs to the dermatophyte fungi, closely related organisms that cause skin infections in animals and humans. T. verrucosum infection has been reported in livestock and people in different countries from all continents. Human cases have been reported in different areas of Pakistan, but there is little information about the animal source of the fungus. Methodology: Dermatological specimens collected in the Chitral district of Pakistan for a study on mange in livestock were retrospectively analyzed for the presence of T. verrucosum. In total, 5,873 animals (1,087 cows, 2,033 goats, and 2,753 sheep) were screened for evidence of dermatological lesions during two surveys performed in the summer and winter seasons. Skin scrapings collected from animals with lesions were analyzed by direct microscopic examination after digestion in sodium hydroxide and a real-time polymerase chain reaction (PCR) targeting pathogenic Trichophyton species. Results: At microscopy, samples from 18 cows (1.6%), 3 sheep (0.1%), and 4 goats (0.2%) were positive for fungal elements consistent with T. verrucosum. PCR confirmed the microscopy results. The prevalence was lower than that reported in other countries in intensive breeding farms. Results agree with the literature regarding factors affecting T. verrucosum diffusion, i.e., infection was more prevalent in cattle, especially in younger animals during the winter season. Conclusions: This study reports, for the first time, the presence of T. verrucosum in livestock in Pakistan. A better knowledge of the animal role in the spread of this fungus may allow the adoption of more efficient control measures and prophylaxis.

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Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Trichophyton verrucosum infection in livestock in the Chitral district of Pakistan

Hameed

Riaz

Nawaz

et al. 2017

J Infect Dev Ctries

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“…By the 1970s to 1980s Trichophyton tonsurans, another anthropophilic dermatophyte, had become the most common cause of tinea capitis (21), and it now causes more than 95% of these infections in the United States (7). By contrast, species such as Trichophyton violaceum and Trichophyton soudanense, which are common causes of tinea capitis in parts of Africa and West Asia (5,15,24,25,35), have rarely been isolated from patients in the United States. Among 14,696 dermatophytes isolated from patients at 54 locations throughout the United States from 1985 through 1987, only 12 were identified as T. violaceum and only 2 were identified as T. soudanense (31).…”

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confidence: 99%

Isolation of Trichophyton violaceum and Trichophyton soudanense in Baltimore, Maryland

Magill¹,

Manfredi

Swiderski

et al. 2007

J Clin Microbiol

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Tinea capitis is of public health importance because of its transmissibility. Trichophyton violaceum and Trichophyton soudanense , which are common causes of tinea capitis in parts of Africa and West Asia, have only rarely been reported to cause dermatophytoses in the United States. We identified 24 patients with 25 positive cultures for T. violaceum or T. soudanense that were processed in a single hospital laboratory in Baltimore, Maryland, between 1 January 2000 and 30 June 2006. Most patients for whom clinical information was available had tinea capitis. There was a marked increase in the isolation of these organisms between the period from 2000 to 2002 and the period from 2003 to 2006, possibly associated with changes in immigration to the Baltimore metropolitan area. The changing epidemiology of this transmissible fungal infection not only is of public health interest as an example of the introduction of a “new” pathogen to an area where it traditionally was not endemic but also is of clinical and microbiological importance given reports suggesting an increasing incidence of tinea capitis in some areas and increasing clinical failure rates of current therapies.

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“…Tinea capitis presents a significant endemic problem mainly in school children in the world [75]. The disease arises with settling separately on the skin, hairs, and nails in living beings [76] [77]. Tinea is the allusion of mycosis which presents as a considerable widespread problem generally in school children [75].…”

Section: Dermatophytosismentioning

confidence: 99%

Distribution and Prevalence of Dermatophytes in Semi-Arid Region of India

Sharma¹,

Kumawat²,

Sharma³

et al. 2015

AiM

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Earth has been documented as a natural territory for fungi which cover individual kingdom with evolution. In subsequently vertebrates developed keratin which was a part of life as a structural aspect. Few moulds have skilled to digest keratin and crop up from soil and wastewater habitats. They take part as a keratinolytic agent in the purification of α-keratins with an incidence of disulphide and hydrogen bonds which are improperly biodegradable. The best moulds genera to decay of keratin are Microsporum, Trichophyton and Epidermophyton. The presences of these genera are open health issues in developing countries where they cause the mortal mycotic contagion. The reason behind this is perceived to be the poor hygienic environment and socioeconomic behaviour among people. The present review is a compilation of updated information concerning the nature of these keratinolytic moulds and abundances of most contributed developing countries including India.

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A clinico‐etiologic correlation in tinea capitis

Abstract: T. violaceum is the predominant pathogen causing tinea capitis in this part of the world, and gives rise to a varied clinical picture.

Cited by 40 publications

References 18 publications

Trichophyton verrucosum infection in livestock in the Chitral district of Pakistan

Trichophyton verrucosum infection in livestock in the Chitral district of Pakistan

Isolation of Trichophyton violaceum and Trichophyton soudanense in Baltimore, Maryland

Distribution and Prevalence of Dermatophytes in Semi-Arid Region of India

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