ABSTRACT
uncinaria stenocephala Canine hookworm of cooler climates. Not seen in puppies (no transmammary transmission). PPP= 2 weeks. Dx: Elongate, ellipsoid egg (90 µm long) in feces has thin shell, usually passed in the eight-celled stage, and larger than Ancylostoma spp. eggs. If eggs develop and hatch in feces L1 (290-360µm), will have a short esophagus with a bulb at its base and a small genital primordium (compare with Strongyloides). Adult Habitat: Small intestine. Similar Species: Other hookworms have similar eggs, but Uncinaria is larger. Range: Focal areas of concentration in northern United States. Clinical Signs: Disease rare (least pathogenic of all canine hookworms) unless high build up of contamination occurs in kennel. Signs: anemia, melena, and diarrhea or constipation. Tx: Interceptor® and Sentinel™ with the active ingredient milbemycin oxime are ineffective against Uncinaria stenocephala. Drugs used at the labeled dose include:
