Field Survey on the Efficacy of Four Anthelmintic Drugs Against Horse Cyathostomin Infection in Europe

摘要

In the past, the selection pressure generated by erroneous use or even abuse of anthelmintics has lead to the spread of drug-resistant parasitic populations. This is particularly true for horse cya-thostomins; recent evidence of reduced efficacy has been reported in Europe, the United States, and Latin America.