SvSXP: a Strongylus vulgaris antigen with potential for prepatent diagnosis

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Ulla Vestergaard Andersen, Daniel K. Howe, Sriveny Dangoudoubiyam, Nils Toft, Craig R. Reinemeyer, Eugene T. Lyons, Susanne Nautrup Olsen, Jesper Monrad, Peter Nejsum, Martin K. Nielsen

Strongyle parasites are ubiquitous in grazing horses. Strongylus vulgaris, the most pathogenic of the large strongyles, is known for its extensive migration in the mesenteric arterial system. The lifecycle of S. vulgaris is characterised by a long prepatent period where the migrating larvae are virtually undetectable as there currently is no test available for diagnosing prepatent S. vulgaris infection. Presence of S. vulgaris larvae in the arterial system causes endarteritis and thrombosis with a risk of non-strangulating intestinal infarctions. Emergence of anthelmintic resistance among cyathostomins has led to recommendations of reduced treatment intensity by targeting horses that exceed a predetermined strongyle faecal egg count threshold. One study suggests an apparent increase in prevalence of S. vulgaris on farms where reduced anthelmintic treatment intensity has been implemented. These issues highlight the need for an accurate and reliable assay for diagnosing prepatent S. vulgaris infection.
Original languageEnglish
Article number84
JournalParasites & Vectors
Volume6
Number of pages13
ISSN1756-3305
DOIs
Publication statusPublished - 2013

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