![]() caninum were highly prevalent in the breed: Four out of every five greyhounds they tested came up positive for hookworms.īut how common are MADR hookworms in other breeds? Kaplan told NEWStat that’s hard to say for sure because the research is ongoing: “ut our preliminary data based on a genetic test for BZ-resistance suggests that resistance to benzimidazoles in hookworms-infected pet dogs is quite common. Kaplan and his colleagues analyzed fecal samples from greyhound adoption kennels, three veterinary practices that work with greyhound adoption groups, and an active racing kennel. George’s University in Grenada, West Indies, and corresponding author of a new study from the University of Georgia that found MADR in hookworms infecting greyhound dogs. ![]() “Multiple anthelmintic resistance in Ancylostoma caninum is much worse than we feared,” said Ray Kaplan, DVM, PhD, DACVM, DEVPC, a professor of parasitology at the School of Veterinary Medicine at St. MADR canine hookworms are hookworms resistant to two or more drug classes of FDA-approved dewormers: benzimidazoles (BZ), macrocyclic lactones, and tetrahydropyrimidines. And they’re only likely to become more common, thanks to the spread of multi-anthelmintic drug resistance (MADR) in the species. The canine hookworm Ancylostoma caninum is the most common species of hookworm affecting dogs in the US.
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