Similar patterns of benzimidazole resistance alleles in ovine gastrointestinal nematodes from Western Canada and Eastern United States supports their shared origins and subsequent spread.

Abstract excerpt

Livestock movement facilitates translocation of anthelmintic resistant parasites, but the extent to which resistance emergence depends on animal movement is still poorly understood. Benzimidazole resistance is widespread in ovine trichostrongylid nematodes, and our understanding of its molecular basis now allows for molecular epidemiology investigations. This study applies deep amplicon sequencing of the...

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