Peer-reviewed veterinary case report
Molecular epidemiology of Trichophyton infections among canines from Northern India.
By Kumar, Manish et al.·Published in Journal de mycologie medicale·2023·Indian Veterinary Research Institute, India·View original on PubMed →
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- dog
Plain-English summary
A study found that skin infections caused by a type of fungus called Trichophyton are common in dogs in Northern India. Researchers looked at samples from 386 dogs and identified ten cases of Trichophyton infections, with the most common species being T. mentagrophytes. These infections can lead to skin problems that pet owners might notice, such as itching or hair loss. The study also tested various antifungal medications and found that most were effective, except for one called fluconazole. Understanding these infections can help veterinarians provide better treatment options for affected pets.
People also search for: dog skin infection treatment · why is my dog itching · Trichophyton in dogs · antifungal medication for dogs
Abstract
Dermatophytes are keratinophilic fungi that cause skin infections in both humans and animals. Recently, the incidence rates of fungal infections associated with Trichophyton spp. have been considered endemic in many locations. The aim of this study was to isolate and characterize Trichophyton spp. from canines and felines. In the present study, screened 442 canine (n = 386) and feline (n = 56) samples for dermatophytes. Among all the samples, ten isolates were identified as Trichophyton spp. based on micro-morphological features. For comparative analysis, we included three human strains of Trichophyton mentagrophytes complex. In vitro susceptibility of antifungal drugs indicated the highest sensitivity except for fluconazole. The canine and human strains were genetically characterized by sequencing three genes: the internal transcribed spacer region of rDNA, translation elongation factor 1- gene, and beta-tubulin. Based on sequence homology and phylogenetic analysis, the ten canine strains belonged to four different species/ genotypes such as T. mentagrophytes genotype VIII (T. indotineae) (n = 5), T. interdigitale (n = 2), T. simii (n = 2) and T. quinckeanum (n = 1). The three human strains used for comparative analysis were identified as T. mentagrophytes genotype VIII (n = 2) and T. benhamiae (n = 1). The study hence indicates that the T. mentagrophytes genotype VIII, considered as an endemic and emerging human pathogenic clone in India, is also the prevalent in animals.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/36459816/