ABSTRACT
ancylostoma caninum Common canine hookworm (most pathogenic). Transcutaneous and transmammary infection PPP= Puppies can shed eggs as early as 2 weeks after birth (transmammary infection). Dx: Elongate ellipsoid (60 µm long), thin-shelled egg in feces (in the 8-celled stage) is indistinguishable from Ancylostoma braziliensis. Ancylostoma eggs are smaller than Uncinaria eggs. If eggs develop and hatch in feces L1 (300-340µm), will have a short esophagus with a bulb at its base and a small genital primordium (compare with Strongyloides). Found in feces. Adult Habitat: Small intestine. Similar Species: Ancylostoma braziliensis. Range: World. Clinical Signs: Anemia. Puppies can die several weeks after birth from transmammary acquired disease. May see diarrhea, constipation, or blood in the stool. Tx: Give anemic puppies transfusions immediately, then treat adult worms. Hookworms constantly repopulate the intestine from larvae sequestered in tissues, so possible that fecal samples collected 2 weeks after treatment will show additional eggs. This repopulation of the intestine can go on for months to years. Drugs to clear the adult infections at the labeled dose include:
