Epidemiological investigation and molecular typing of dermatophytosis caused by Microsporum canis in dogs and cats

Cunha, Michele Milano da; Capote-Bonato, Francieli; Capoci, Isis Regina Grenier; Bonato, Denis Vinicius; Ghizzi, Lucas G.; Paiva-Lima, Patrícia; Baeza, Lílian Cristiane; Svidzinski, Terezinha Inez Estivalet

doi:10.1016/j.prevetmed.2019.03.019

Cited by 14 publications

(12 citation statements)

References 43 publications

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“…In the same way, it was observed that N gypsea complex presented a higher prevalence than M canis , differing again from what was observed in other works made in Colombia and around the world 12,16,19,26,30,34,35 . This may be due to the type of population assessed in the study and may be related to occupational activities such as gardeners or farmworkers 2 .…”

Section: Discussioncontrasting

confidence: 57%

“…Nannizzia gypsea complex and M canis are more common in animals than in humans and have been described in several domestic specimens such as dogs, cats, horses and rabbits. In addition, studies conducted in Colombia, Brazil and Italy in dogs and cats showed a high prevalence of N gypsea complex and M canis ; 34,40,41 this fact could be related to the increasing incidence of these agents in human infections, given that transmission occurs essentially by direct contact with the infected animals.…”

Section: Discussionmentioning

confidence: 99%

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Species distribution of the main aetiologic agents causing skin dermatophytosis in Colombian patients: A 23‐year experience at a Mycological Reference Center

Carrascal‐Correa

Zuluaga

González

2020

Mycoses

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| INTRODUC TI ONDermatophyte infections are a type of infection produced by different groups of pathogenic fungi for humans and some animals. These fungi can invade keratinised structures such as the stratum corneum, hair and nails. 1,2 Dermatophytosis is among the most frequently diagnosed skin infections worldwide. 3,4 It is produced by dermatophytes that can digest and use keratin as a substrate, comprising seven genera with four being recognised as affecting human beings, namely, Trichophyton, Microsporum, Nannizzia or Epidermophyton. 5 These can be classified, according to their habitat, as anthropophilic, geophilic and zoophilic. In studies conducted in Latin America, the five most frequent dermatophytes in the general population were Trichophyton rubrum (70%), Microsporum canis (13%), Trichophyton mentagrophytes Summary Background: Dermatophytosis is one of the most frequent superficial mycoses in the world. Main aim: To describe the cases of skin dermatophytosis and its main aetiologic agents in patients referred to a Mycological Reference Laboratory in Medellín, Colombia. Methods: A retrospective study was carried out with records of patients referred between 1994 and 2016 to the Corporación para Investigaciones Biológicas (CIB), Medellín-Colombia, because of clinical suspicion of skin dermatophytosis. Results: Of a total of 5628 clinical records of patients with suspicion of skin dermatophytosis analysed, 2780 (49.4%) had a proven or probable dermatophytosis diagnosis, 2774 cultures were performed, and aetiologic agents were isolated in 2576 samples (92.9%). The most frequently isolated aetiologic agents were Trichophyton rubrum (44.3%), followed by Trichophyton mentagrophytes complex (33.3%), Epidermophyton floccosum (12.4%), Nannizzia gypseum complex (5.7%, formerly Microsporum gypseum),Microsporum canis (3.5%) and Trichophyton tonsurans (0.8%). The most frequent clinical forms were tinea pedis (72.7%) and tinea corporis (12.7%). In addition, a group of patients (0.9%) developed mixed infections by two dermatophyte agents and another (4.1%) developed infections in more than one anatomical site. Conclusions:The results of the present study are coherent with previous reports where T rubrum and T mentagrophytes complex were the main causative agents of dermatophytosis. However, the increased incidence of N gypsea complex over M canis is worth highlighting. K E Y W O R D Sdermatophytosis, Epidermophyton, Microsporum, Nannizzia, tinea, Trichophyton | 495 CARRASCAL-CORREA Et AL.

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Section: Discussioncontrasting

confidence: 57%

Section: Discussionmentioning

confidence: 99%

Species distribution of the main aetiologic agents causing skin dermatophytosis in Colombian patients: A 23‐year experience at a Mycological Reference Center

Carrascal‐Correa

Zuluaga

González

2020

Mycoses

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“…Infected animals may be asymptomatic carriers without clinical signs. Examples are 16% M. canis carriage in a study of European cats [140], 27% in suspected Brazilian cats [141], and the isolation of T. mentagrophytes dermatophytes from 4% of clinically healthy rabbits and 17% of guinea pigs in Dutch pet shops [142].…”

Section: Pets In the Bedroom And In Bedmentioning

confidence: 99%

A One Health Perspective on the Human–Companion Animal Relationship with Emphasis on Zoonotic Aspects

Overgaauw

Vinke

Hagen

et al. 2020

IJERPH

184

137

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Over time the human–animal bond has been changed. For instance, the role of pets has changed from work animals (protecting houses, catching mice) to animals with a social function, giving companionship. Pets can be important for the physical and mental health of their owners but may also transmit zoonotic infections. The One Health initiative is a worldwide strategy for expanding collaborations in all aspects of health care for humans, animals, and the environment. However, in One Health communications the role of particularly dogs and cats is often underestimated. Objective: Evaluation of positive and negative One Health issues of the human–companion animal relationship with a focus on zoonotic aspects of cats and dogs in industrialized countries. Method: Literature review. Results: Pets undoubtedly have a positive effect on human health, while owners are increasing aware of pet’s health and welfare. The changing attitude of humans with regard to pets and their environment can also lead to negative effects such as changes in feeding practices, extreme breeding, and behavioral problems, and anthropozoonoses. For the human, there may be a higher risk of the transmission of zoonotic infections due to trends such as sleeping with pets, allowing pets to lick the face or wounds, bite accidents, keeping exotic animals, the importation of rescue dogs, and soil contact. Conclusions: One Health issues need frequently re-evaluated as the close human–animal relationship with pet animals can totally differ compared to decennia ago. Because of the changed human–companion animal bond, recommendations regarding responsible pet-ownership, including normal hygienic practices, responsible breeding, feeding, housing, and mental and physical challenges conforming the biology of the animal are required. Education can be performed by vets and physicians as part of the One Health concept.

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“…Lesions in cases of dermatophytosis are variable for each species of animal [ 1 , 24 - 26 ], the most common clinical symptoms being hair loss, skin crust, erythema, and pruritus (Figures- 3 and 4 ). Other studies showed that dermatophyte infection in dogs cause lesions localized to the face, legs, and/or tail [ 27 ]. The previous studies [ 1 , 19 , 26 ] have demonstrated that infected dogs clinically showed lesions in the skin such as multifocal alopecia, erythema, papule, pustule, scale, and crust with a distinctive formation known as ringworm.…”

Section: Introductionmentioning

confidence: 99%

Dermatophytosis in companion animals: A review

2020

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Dermatophytosis, a zoonotic disease, is caused by fungi of three main genera, namely, Micropsorum, Trichophyton, and Epidermophyton. Specific lesions of dermatophyte infections are localized in the face, legs, and/or tail. Skin lesions in infected animals demonstrate localized alopecia, erythema, and crust, which are more commonly known as ringworm. Factors that affect dermatophytosis include the dermatophyte species; virulence factors of the agent; and the immune status, age, and sex of the host. High levels of cortisol and pro-inflammatory cytokines have also been reported to play an important role in dermatophyte infection. This review aims to explore and understand factors that affect dermatophyte infection with an emphasis on the prevalence, clinical signs, pathogenesis, immune response, and the roles of cortisol and cytokines in companion animals infected by a dermatophyte.

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Epidemiological investigation and molecular typing of dermatophytosis caused by Microsporum canis in dogs and cats

Cited by 14 publications

References 43 publications

Species distribution of the main aetiologic agents causing skin dermatophytosis in Colombian patients: A 23‐year experience at a Mycological Reference Center

Species distribution of the main aetiologic agents causing skin dermatophytosis in Colombian patients: A 23‐year experience at a Mycological Reference Center

A One Health Perspective on the Human–Companion Animal Relationship with Emphasis on Zoonotic Aspects

Dermatophytosis in companion animals: A review

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