Dermatophytes and saprobe fungi isolated from dogs and cats in the city of Fortaleza, Brazil

Paixão, Germana Costa; Sidrim, José Júlio Costa; Brilhante, Raimunda Sâmia Nogueira; Rocha, Marcos F.G.

doi:10.1590/s0102-09352001000500010

Cited by 23 publications

(24 citation statements)

References 16 publications

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“…According to other studies, there is a higher prevalence of M. canis infection in dogs and cats aged less than 1 year. 9,10,23 However, this was not observed in this study, and there was no indication that age played a significant role, corroborating the findings from previous studies. 2,15 Although carnivores can be colonized by lipiddependent species of Malassezia, 1 only 1 dog, a female Dachshund, aged 2 years and 4 months, had a positive culture for a lipid-dependent Malassezia.…”

Section: Discussionsupporting

confidence: 90%

Frequency of yeasts and dermatophytes from healthy and diseased dogs

Prado

Brilhante²,

Cordeiro³

et al. 2008

J VET Diagn Invest

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Abstract. The aim of this study was to investigate the presence of dermatophytes and yeasts in healthy and diseased dogs. A total of 633 samples were collected from 26 healthy animals (104 samples), 131 with dermatitis (343 samples), 74 with otitis (148 samples), and 19 with ocular diseases (38 samples). Cultures from healthy animals were positive for Malassezia pachydermatis in 13.5% (7/52) of samples from skin, 42.3% (11/ 26) from ear, and 3.8% (1/26) from eye. Fungal growth was observed in 20.4% (70/343) samples from animals with dermatitis. Microsporum canis was the most isolated fungus (n 5 39), followed by M. pachydermatis (n 5 30) and Malassezia sp. (n 5 3). Of the 148 samples from dogs with otitis, 90 (60.8%) were positive for M. pachydermatis, and of the clinical specimens from the conjunctiva of animals with ophthalmic disease, 2.6% (1/38) presented positive cultures for M. pachydermatis. Only 14.3% (2/14) of the positive cultures for M. pachydermatis and 40.9% (9/22) of those for M. canis were positive in the direct exam. Direct exams were positive in 84.3% (70/83) of the culture positive samples from affected ears of dogs with otitis. Malassezia pachydermatis may act as an aggravating factor in the occurrence of cutaneous diseases, or the isolation of M. canis may be associated with the onset of dermatophytosis. Fungal culture, rather than microscopic examination, should be used as the definitive diagnostic test for dermatomycoses and otitis.

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Section: Discussionsupporting

confidence: 90%

Frequency of yeasts and dermatophytes from healthy and diseased dogs

Prado

Brilhante²,

Cordeiro³

et al. 2008

J VET Diagn Invest

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“…and Penicillium spp. These fungi cause lesions mainly in immunocompromised individuals (PAIXÃO et al, 2001). In addition to these microorganisms, Yamada et al (2000) include Malassezia spp.…”

Section: Of Skin Lesionsmentioning

confidence: 99%

Isolation of dermatophytes from 50 asymptomatic domestic cats treated at the Federal University of Mato Grosso Veterinary – Hospital in Cuiabá, MT

Lima

Silva

Silveira

et al. 2016

SCA

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Dermatophytosis, commonly known as ringworm, is a zoonotic disease caused by complex fungi that grow as hyphae and attach to the skin, hair and nails or claws. About 40 species of fungi of the genera Microsporum spp., Trichophyton spp. and Epidermophyton spp. are considered dermatophytes, and Microsporum canis is the genus most commonly isolated from cats. This study investigated the occurrence of dermatophytes in cats without clinical signs of skin diseases. The study involved the physical examination of 50 clinically healthy cats and the collection of samples for direct examination and fungal culture at a university veterinary hospital. The resulting data were evaluated by the chisquare association test. Of the 50 cats, 11 (22%) presented dermatophytes, with a predominance of Microsporum spp. The other 39 animals were diagnosed for non-dermatophytic fungi. Sex, breed and the presence of contactants showed no statistical difference, although there was a predominance of adult animals. The high dermatophyte infection rate confirms that cats without clinical signs can harbor these fungi, acting as asymptomatic carriers, contaminating the environment and increasing the infection rate. This study confirms that cats without clinical signs can be carriers of ringworm, which underscores the importance of the adoption of control methods even for clinically healthy animals. Key words: Cats. Fungi. Microsporum spp. Trichophyton spp. Zoonotic disease. ResumoDermatofitose é uma zoonose causada por fungos complexos que crescem como hifas e se fixam na pele superficial, pelo e unhas. Existem cerca de 40 espécies de fungos pertencentes aos gêneros Microsporum, Trichophyton e Epidermophyton, considerados dermatófitos e, destes, o mais isolado em gatos é o Microsporum canis. Este estudo teve o objetivo de verificar a ocorrência de dermatófitos em felinos, ausentes de sinais clínicos de dermatopatias. Em Hospital Veterinário Universitário, 50 gatos clinicamente saudáveis foram avaliados e submetidos ao exame físico, coleta de amostra para

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“…Animals younger than one year-old appear to be susceptible to dermatophytoses, but there is no apparent sex predisposition [2,5,[26][27][28].…”

Section: Epidemiologymentioning

confidence: 99%