Resistance to triclabendazole in Fasciola hepatica on a commercial sheep farm in Taranaki, New Zealand

Key Points

• To investigate the occurrence of triclabendazole-resistant Fasciola hepatica in a sheep farm in Taranaki, New Zealand.
• Field study conducted on a commercial sheep farm in Taranaki.
• Assessment of liver fluke resistance to triclabendazole treatment.
• Evaluation of treatment regimens and management practices.
• Collection of data on livestock sales from the farm.
• Triclabendazole-resistant liver fluke was identified on the farm.
• Resistance may lead to treatment failures in managing liver fluke infections.
• Indications that resistant fluke could spread across New Zealand due to livestock movement.