Peer-reviewed veterinary case report
Screwworm fly larvae causing wounds in pet dogs in Hong Kong
By Chemonges-Nielsen, S·Published in Australian veterinary journal·2003·Veterinary Nexus·View original on PubMed →
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Original publication title: Chrysomya bezziana in pet dogs in Hong Kong: a potential threat to Australia.
- Species:
- dog
Plain-English summary
A group of pet dogs in Hong Kong developed serious skin infections caused by the Old World Screwworm fly, which laid larvae in their wounds. Owners noticed round, punched-out wounds that had a strong, unpleasant smell and were oozing fluid or blood. Treatment involved carefully removing the larvae, cleaning the wounds, and using insect repellents to prevent re-infestation. With proper care, the dogs recovered, but this situation raises concerns about the potential spread of this fly to other regions like Australia.
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Abstract
The Old World Screwworm fly (Chrysomya bezziana) has recently been causing aggressive myiasis in pet dogs in Hong Kong, and the Agriculture, Fisheries and Conservation Department of Hong Kong has confirmed the presence of Chrysomya bezziana in the territory. This report describes screwworm infestation in pet dogs presented for treatment at our clinic in the past year. Screwworm fly larvae were found in typically punched out round wounds or embedded in exposed or neglected wounds. Infested wounds had a characteristic strong offensive smell and oozed a sero-sanguineous exudate or frank blood. Removal of the larvae, wound treatment, continuous monitoring for re-infestation, application of insect repellants and protective housing were essential for successful treatment. Because Hong Kong is a source of pet migration or a transit point to Australia, the fly could threaten Australia.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15080442/