Caribbean small ruminant importation requirements in an era of widespread anthelmintic resistance
2021
Darby, Brandy J.
Resistance of small ruminant gastrointestinal parasites to available classes of anthelmintic drugs is a widespread problem. As such, use of these drugs needs to be applied in a judicious manner in order to protect animal health. Herein, a case of drug-resistant gastrointestinal nematodes imported to the Cayman Islands is outlined. In order to explore the potential for similar occurrences within the region, a survey was undertaken in March 2017 to assess the importation requirements for small ruminants to English-speaking Caribbean countries. The survey showed that universal administration of anthelmintics to small ruminants is a common pre-requisite for importation to the Caribbean region, though very few countries require any proof of drug efficacy. Such requirements are discordant with current recommendations for judicious anthelmintic use in domestic animal species and promote the continued development of anthelmintic resistance. While this survey focused on small ruminants, similar policies are often in place for the importation of a variety of animal species, including cattle, horses, and companion animals. Given that anthelmintic resistance is also recognized in parasite populations that impact these species, it may be time for the international community to revisit live animal importation requirements in the age of anthelmintic resistance. Some recommendations and considerations are put forward to help preserve animal health, animal welfare, and developing animal agricultural industries.
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