Vet Med - Czech, 2023, 68(7):281-286 | DOI: 10.17221/32/2023-VETMED

Reliability of using Wood’s lamp by shelter personnel to diagnose Microsporum canis in catsOriginal Paper

K Mrazkova, J Konvalinova ORCID..., I Bedanova
Department of Animal Protection, Welfare and Ethology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Brno, Czech Republic

Optimising diagnostic methods in shelters so that they are as economical as possible for the shelter is especially important because shelters often have a significant lack of funds and so usually do not carry out preventive screening of cats. Dermatophyte fungi spread quickly and can infect shelter staff. The aim of our work was to identify the occurrence of Microsporum canis in shelter cats. It aimed to determine the prevalence of M. canis in cats at the selected shelter and compare the efficiency of detection using a Wood’s lamp and culturing on Sabouraud’s agar. All cats present in the shelter at the time of the study (n = 70) were examined with Wood’s lamp and hair sampling followed by subsequent culturing on Sabouraud’s agar. Identification of fungi was based on microscopic proof of macroconidia and microconidia. The prevalence of M. canis by diagnosis on Sabouraud’s agar was 64.29% of cats, with the help of Wood’s lamp 48.57% of cats showed positive fluorescence. The sensitivity of the Wood lamp examination was 71% and the specificity was 92%. Our study suggests that Wood’s lamp could be used by trained shelter personnel for the first examination of cats at reception and could significantly reduce the risk of spreading M. canis in shelters.

Keywords: culturing; dermatophyte; Sabouraud’s agar; skin disease

Received: March 9, 2023; Revised: July 11, 2023; Accepted: July 13, 2023; Prepublished online: July 28, 2023; Published: July 29, 2023  Show citation

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Mrazkova K, Konvalinova J, Bedanova I. Reliability of using Wood’s lamp by shelter personnel to diagnose Microsporum canis in cats. Vet Med - Czech. 2023;68(7):281-286. doi: 10.17221/32/2023-VETMED.
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