Diagnostic strategies to reveal covert infections with intestinal helminths in dogs

Veterinary Parasitology
Chris AdolphSusan Little

Abstract

Intestinal helminths are common in dogs in the United States, particularly non-treated dogs in animal shelters, but surveys by fecal flotation may underestimate their prevalence. To determine the prevalence of intestinal helminths and evaluate the ability of fecal flotation and detection of nematode antigen to identify those infections, contents of the entire gastrointestinal tract of 97 adult (>1year) dogs previously identified for humane euthanasia at two animal control shelters in northeastern Oklahoma, USA, were screened. All helminths recovered were washed in saline and fixed prior to enumeration and identification to genus and species. Fecal samples from each dog were examined by passive sodium nitrate (SG 1.33) and centrifugal sugar solution (SG 1.25) flotation. Fecal antigen detection assays were used to confirm the presence of nematode antigen in frozen fecal samples from 92 dogs. Necropsy examination revealed Ancylostoma caninum in 45/97 (46.4%), Toxocara canis in 11/97 (11.3%), Trichuris vulpis in 38/97 (39.2%), Dipylidium caninum in 48/97 (49.5%), and Taenia sp. in 7/97 (7.2%) dogs. Passive fecal flotation identified 38/45 (84.4%) A. caninum, 6/11 (54.5%) T. canis, 26/38 (68.4%) T. vulpis, 2/48 (4.2%) D. caninum, an...Continue Reading

Citations

Oct 18, 2019·Journal of the American Animal Hospital Association·Kate E CreevyJinelle A Webb
Mar 21, 2019·Animals : an Open Access Journal From MDPI·Adam O'ConnellKate E Hill
Mar 25, 2020·Case Reports in Pediatrics·Hannah F ChongMichael L Chang
Oct 3, 2018·Tropical Medicine and Infectious Disease·Simone Gillespie, Richard S Bradbury

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