Peer-reviewed veterinary case report
Canine and feline cutaneous screw-worm myiasis in Malaysia: clinical aspects in 76 cases.
- Journal:
- Veterinary dermatology
- Year:
- 2018
- Authors:
- Han, Hock Siew et al.
- Affiliation:
- The Animal Clinic
Plain-English summary
In Malaysia, a study looked at 76 cases of cutaneous screw-worm myiasis, which is an infection caused by larvae burrowing into the skin of dogs and cats. The research included 55 dogs and 21 cats, mostly intact male mixed breed dogs around 4.5 years old and intact male domestic short hair cats about 2 years old. These animals often had wounds from fights, and the screw-worm larvae were typically found in areas like the ears, perineum, and paws. The study suggests that aggression between unneutered pets may be a key reason for these infections, and in some cases, cats also had a fungal infection called sporotrichosis that could have contributed to the problem. Overall, the findings highlight the importance of addressing aggression in pets to prevent this type of infection.
Abstract
BACKGROUND: Cutaneous screw-worm myiasis in companion animals either due to the New World screw-worm, Cochliomyia hominivorax or the Old World screw-worm, Chrysomya bezziana, has been reported particularly in tropical and subtropical regions of the world. Although treatment of screw-worm myiasis in dogs has been described, few studies have been conducted regarding its clinical and epidemiological aspects in companion animals. OBJECTIVES: To describe clinical and epidemiological aspects of canine and feline screw-worm myiasis. ANIMALS: Naturally infested dogs and cats, presented to five veterinary clinics in four Malaysian states from September 2017 to February 2018. METHODS AND MATERIALS: Cutaneous screw-worm myiasis was diagnosed based on clinical signs and visual examination of burrowing larvae within lesion. Age, breed, gender, anatomical site of infestation and suspected underlying predisposing causes were investigated. RESULTS: A total of 55 dogs and 21 cats were included in the study. Intact male mixed breed dogs (mean age 58 months) and intact male domestic short hair cats (mean age 24 months) with suspected fight-related wounds were most commonly presented with exudative and ulcerative lesions associated with screw-worm myiasis. The most common anatomical sites of infestation in the dogs were the external ear canals, followed by the perineum and medial canthus. For the cats, the most commonly affected areas were paws and tail. Five cats with screw-worm myiasis were concurrently infected with sporotrichosis. CONCLUSION AND CLINICAL RELEVANCE: Aggression between unneutered animals is a likely underlying cause for cutaneous screw-worm myiasis in both cats and dogs. Sporotrichosis was also a potential predisposing cause for screw-worm myiasis in cats.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/30066413/