In many species, including dogs, there is evidence that some parasites are developing resistance to certain types of deworming medications. One of these parasites is the canine hookworm – known as Ancylostoma caninum. Dr. John Gilleard from the University of Calgary has been involved in investigations into the emergence and diagnosis of these drug-resistant canine hookworms over the past few years. In addition to working as a Professor of Parasitology and the Associate Dean of Research at the faculty of Veterinary Medicine in Calgary, his research focusses on drug-resistant parasites and ways to investigate the emergence and spread of these in animal populations including cattle, other ruminants, and dogs.