Molecular Epidemiology of Japanese Isolates of &lt;i&gt;Microsporum canis&lt;/i&gt; Based on Multilocus Microsatellite Typing Fragment Analysis

Watanabe, Junko; Anzawa, Kazushi; Mochizuki, Takashi

doi:10.7883/yoken.jjid.2016.424

Cited by 11 publications

(39 citation statements)

References 22 publications

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“…These three strains of M. canis (KMU7067-9) were genotyped by microsatellite (MS) profiles 3-5 using six primer pairs named MS1, 2 and 4-7, which is the most sensitive method for genotyping of M. canis. 4 As a result, all three isolates were classified as type A which we designated previously. We classified 70 Japanese clinical isolates into 20 genotypes A-T with A being the most prevalent (21.4%), and also found in each five different episodes of infection among humans and pet cats.…”

Section: Infant Case Of Tinea Faciei Caused By Microsporum Canismentioning

confidence: 92%

“…We classified 70 Japanese clinical isolates into 20 genotypes A-T with A being the most prevalent (21.4%), and also found in each five different episodes of infection among humans and pet cats. 4 Following the results of our genotyping of the fungal cultures from the boy and pets, the family agreed to segregate their living space in the residence and to consult a veterinarian for removal of the fungus from the cats. Thus, intraspecies genotyping 5 is a useful method for analyzing and tracing fungal infections.…”

Section: Infant Case Of Tinea Faciei Caused By Microsporum Canismentioning

confidence: 99%

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Infant case of tinea faciei caused by Microsporum canis

Takeda

Anzawa

Mochizuki

et al. 2018

The Journal of Dermatology

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Section: Infant Case Of Tinea Faciei Caused By Microsporum Canismentioning

confidence: 92%

Section: Infant Case Of Tinea Faciei Caused By Microsporum Canismentioning

confidence: 99%

Infant case of tinea faciei caused by Microsporum canis

Takeda

Anzawa

Mochizuki

et al. 2018

The Journal of Dermatology

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“…, Watanabe et al 20) analyzed 70 M. canis strains in Japan, of which 59 were isolated from humans and 11 from cats, and divided them into 20 genotypes (A to T). They found the same genotype of M. canis isolated from pet cats and confirmed catto-human transmission in five families (Table 4).…”

Section: )mentioning

confidence: 99%

An Epidemiological Study of Feline and Canine Dermatophytoses in Japan

Yamada¹,

Anzawa

Mochizuki

2019

Medical Mycology Journal

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In a 2012-2014 epidemiological study of feline and canine dermatophytoses in Japan, we investigated the prevalence of fungi among 296 cats and 170 dogs treated at a veterinary clinic and 51 cats and dogs at an animal shelter at Fukui City in Japan. Microsporum canis was isolated from only one cat out of the 517 animals. Also, from 2012 to 2017, we analyzed isolates from 76 cats and 15 dogs with dermatophytoses at 14 veterinary clinics across 10 prefectures in Honshu and Shikoku. M. canis was the cause for 85 of the cases and Microsporum gypseum for the other six. M. canis infection routes in cats are thought to include stray cats as well as breeding facilities and pet shops, whereas for dogs, only breeding facilities and pet shops. Tinea was found in 18.7 % (14/75) of the owners of these animals. We showed that microsatellite genotyping is useful for molecular epidemiological investigations such as determination of infection routes of M. canis.

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“…Asymptomatic animal carriers of M. canis are considered to be a critical factor in the epidemiology of the disease, as 50% of humans exposed to infected asymptomatic animals, especially cats, can be infected . Currently, although M. canis‐ infected animals are the major route of fungal infection spreading in humans, nosocomial outbreaks of infection may indicate that human‐to‐human transmission are possible …”

Section: Introductionmentioning

confidence: 99%

“…As most dermatophytes , M. canis reproduce asexually through a mitotic process, and the propagules that originate from the asexual reproduction (conidia) vary according to the context in which the fungus is located . During hair or scalp invasion, hyphae are fragmented to produce masses of small arthroconidia, which represent the infective parts of the fungus .…”

Section: Introductionmentioning

confidence: 99%

Tinea corporis by Microsporum canis in mycological laboratory staff: Unexpected results of epidemiological investigation

Gnat

Łagowski

Nowakiewicz

et al. 2018

Mycoses

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Microsporum canis is a zoophilic dermatophyte, which is very contagious, especially to cats and dogs. Asymptomatic animal carriers of M. canis are regarded a critical factor in the epidemiology of the disease. The aim of this study was to investigate the epidemiological origin of M. canis isolates using morphological traits in combination with molecular analysis. Identification of dermatophyte strains was carried out by correlating the clinical manifestation of the infection with a micro- and macroscopic examination. To confirm the species affiliation fully, molecular differentiation methods were used. A positive result of the culture examination was obtained from the samples with arthrospores in the direct analysis, that is, from a symptomatic cat and humans, and from a cat without any signs of infection. The microsatellite-primed PCR fingerprinting (MSP-PCR) electro-profiles were identical for all analysed strains. The melting profile-PCR (MP-PCR) electrophoregram indicated variability of the genomes of the strains. The search for the source of the infection indicated one cat that did not have any signs of dermatophytosis. PCR-fingerprinting techniques are useful tools for epidemiological investigation of the origin of dermatophyte infection. These methods can also be used in many cases for species identification of dermatophytes and clarification of the relationships among varieties of a species.

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Molecular Epidemiology of Japanese Isolates of <i>Microsporum canis</i> Based on Multilocus Microsatellite Typing Fragment Analysis

Cited by 11 publications

References 22 publications

Infant case of tinea faciei caused by Microsporum canis

Infant case of tinea faciei caused by Microsporum canis

An Epidemiological Study of Feline and Canine Dermatophytoses in Japan

Tinea corporis by Microsporum canis in mycological laboratory staff: Unexpected results of epidemiological investigation

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