Suspected ivermectin resistance in a south-east Queensland parascaris equorum population

Article


Beasley, A., Coleman, G. and Kotze, A. C.. 2015. "Suspected ivermectin resistance in a south-east Queensland parascaris equorum population." Australian Veterinary Journal. 93 (9), pp. 305-307. https://doi.org/10.1111/avj.12352
Article Title

Suspected ivermectin resistance in a south-east Queensland parascaris equorum population

ERA Journal ID5499
Article CategoryArticle
AuthorsBeasley, A. (Author), Coleman, G. (Author) and Kotze, A. C. (Author)
Journal TitleAustralian Veterinary Journal
Journal Citation93 (9), pp. 305-307
Number of Pages3
Year2015
Place of PublicationUnited Kingdom
ISSN0005-0423
1751-0813
Digital Object Identifier (DOI)https://doi.org/10.1111/avj.12352
Abstract

Background: There have been several international reports of macrocyclic lactone (ML)-resistant Parascaris equorum over the past decade, but the resistance status of Australian P. equorum populations is largely unknown. A case of apparent reduced efficacy of ivermectin against P. equorum in Australia was investigated. Methods and Results: A faecal egg count reduction test carried out on a group of weanling foals in south-east Queensland showed the efficacy of ivermectin to be 65%. Conclusion: The case highlights the need to review current worm control strategies, especially for young horses.

Keywordsivermectin; macrocyclic lactone; parascaris equorum; resistance; animals; anthelmintics; ascaridida infections; ascaridoidea; drug resistance; horse diseases; horses; ivermectin; Queensland
ANZSRC Field of Research 2020300909. Veterinary parasitology
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Byline AffiliationsUniversity of Queensland
Institution of OriginUniversity of Southern Queensland
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