DM2 Pt4-1 Dermatophytosis Flashcards
What is the most common cause of dermatophytosis in cats?
Microsporum canis is the most common cause of dermatophytosis in cats.
What groups of cats are most likely to show severe clinical signs of dermatophytosis?
Severe signs are mostly seen in kittens and immunosuppressed adult cats.
What environmental factor predisposes cats to dermatophytosis outbreaks?
Poor hygiene can predispose cats to dermatophytosis, especially in shelters or catteries.
How is dermatophytosis transmitted between cats?
Dermatophytosis is transmitted via contact with sick cats, healthy carriers, and contaminated fomites like dust, brushes, or clothes.
How long can Microsporum canis spores survive in the environment?
Infectious arthrospores can survive for about a year in the environment.
What are the typical clinical signs of dermatophytosis in cats?
Circular alopecia, desquamation, and sometimes an erythematous margin around central healing (ringworm).
What simple diagnostic methods can be used to detect Microsporum canis infection?
Wood’s lamp examination and microscopic detection of arthrospores on hairs.
What is the gold standard for diagnosing dermatophytosis in cats?
Culture on Sabouraud agar of hairs and scales from new lesions is the gold standard.
What is the recommended treatment for dermatophytosis in shelters or catteries?
A combination of systemic (itraconazole or terbinafine) and topical treatments (enilconazole or miconazole with or without chlorhexidine) is recommended.
Why is it difficult to eradicate dermatophytosis in shelters and catteries?
Eradication is difficult due to environmental contamination, requiring both treatment and intensive decontamination.
Is there an effective vaccine available for Microsporum canis in cats?
No, a safe and efficient vaccine for Microsporum canis in cats is not available.
