Mateo is a veterinarian who is asked to look at a six-month-old puppy. The puppy has lost several patches of hair around its hindquarters and stomach. Its owner says that the poor thing is constantly scratching the areas and she
is afraid that it will get infected. After examining the pup, Mateo takes a skin scraping of the area without hair.
After examining the scraping under a microscope, Mateo prescribes some medication for the puppy and a
medicated bath for the owner to give her. He also advises her that if she has any other pets in the home, she
should separate them. Based on these findings, what type of parasite infection does this pup MOST likely have?