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Epizootiology of endoparasitic infections in pet dogs and cats presented to a veterinary teaching hospital
Authors:C E Kirkpatrick
Institution:Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia 19104.
Abstract:Prevalences of, and risk factors associated with, protozoan and helminth parasite infections were determined for pet dogs and cats presented to the teaching hospital of the University of Pennsylvania School of Veterinary Medicine. Of 2294 canine fecal specimens, 34.8% were found to contain one or more kinds of parasite, consisting of: hookworms (14.4%); Trichuris vulpis (12.3%); Giardia (7.2%); ascarids (5.5%); coccidia (2.7%); cestodes (1.6%). The following risk factors were identified with infection in dogs: age less than 2 years; urban locality; male sex. Gonadectomy was associated with decreased parasite prevalences in both male and female dogs. Significant seasonal variations in prevalences of hookworm, ascarid and Giardia infections were found in dogs. Of 452 feline fecal specimens tested, 24.6% were positive for parasites, including: ascarids (16.4%); Giardia (3.5%); coccidia (2.9%); cestodes (2.4%); hookworm (1.1%). Host age of less than 2 years was a significant risk factor associated with parasitism in cats. Of 1571 dogs tested for Dirofilaria immitis microfilaremia, 3.7% were positive. Non-urban locality was a significant risk factor for D. immitis infection in dogs.
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