Cited by 181Helminth infection and controlParasitic infections in humans and animalsParasitic Infections and Diagnostics

Endoparasite prevalence and recurrence across different age groups of dogs and cats

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Gates, Maureen C., Nolan, Thomas J.·2009·Veterinary Parasitology

Abstract

The apparent prevalence of endoparasite infections across different age groups was calculated from 6555 dogs and 1566 cats that had a fecal examination performed upon presentation to the Veterinary Hospital of the University of Pennsylvania between 1997 and 2007. Based on notations from the medical history indicating prior parasite infections, estimates of recurrence were generated for each common group of parasites, including Trichuris, Giardia, ascarids, hookworms, Cystoisospora, and tapeworms. Endoparasitism was predominantly a disease of younger animals, with peak prevalence observed almost uniformly in dogs under 6 months old, with the exception of Trichuris with its longer pre-patent period, and in cats less than 18 months old. Furthermore, nearly 50% of dogs under 6 months old with a history of parasites, were diagnosed with at least one species of parasite on subsequent fecal examination. The percentage dropped to 18.4% in animals aged 1-4 years, but again increased to 31.5% in animals over 10 years old. There was no reported recurrence of Giardia or Cystoisospora from canine or feline patients older than 1 year. The recurrence of whipworm rose steadily with age, while hookworm and roundworm recurrence peaked in patients 1-4 years old. Findings from the study emphasize the importance of follow up fecal examinations and treatments in patients diagnosed with endoparasites.

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Crossref · 10.1016/j.vetpar.2009.07.041

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  • Adult dogs have the same susceptibility for patent infections as naïve patients when later re-exposed and even when repeatedly exposed to the parasite and having circulating antibodies vs ascarid surface antigens.

    “Also, they have the same susceptibility for patent infections as naïve patients when later re-exposed and even when repeatedly exposed to the parasite and having circulating antibodies vs ascarid surface antigens [52,53].”
  • No significant differences in nematode infection in symptomatic dogs, compared with animals without clinical signs has been found.

    “no significant differences in nematode infection in symptomatic dogs, compared with animals without clinical signs has been found [49,53,192]”
  • Recurrence of parasites is possible, regardless of whether dogs and cats undergo a control anthelmintic program or not.

    “recurrence of parasites is possible, regardless of whether they undergo a control anthelmintic program or not [51,53]”

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Authors
Gates, M. C., & Nolan, T. J.
Affiliations
University of Pennsylvania (US)
Corresponding author
Nolan, Thomas J.
Venue
Veterinary Parasitology
Publisher
Elsevier BV
Published
2009-12
Volume
166
Issue
1-2
Pages
153-158
ISSN
0304-4017 (ISSN-L)
OpenAlex
W2013695084
Cited by
181
References
17
Citations by year
2026: 4 · 2025: 11 · 2024: 11 · 2023: 11 · 2022: 13 · 2021: 12 · 2020: 15 · 2019: 9 · 2018: 15 · 2017: 10 · 2016: 7 · 2015: 12 · 2014: 16 · 2013: 6 · 2012: 12
FWCI
15.05
Type
journal article
Language
en
Open access
Locations
  • Veterinary Parasitology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Center for Research Resources (RR 07065, T35RR007065)
Topics
  • Health Sciences › Veterinary › Small Animals › Helminth infection and control
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Parasitic infections in humans and animals
  • Life Sciences › Immunology and Microbiology › Parasitology › Parasitic Infections and Diagnostics
Keywords
endoparasites, parasite prevalence, dogs, cats, age-related infection risk, Trichuris, Giardia, ascarids, hookworm, Cystoisospora, cestodes, Trichuris trichiura, fecal analysis, prepatent period
MeSH terms
Age Factors, Animals, Cat Diseases, Cats, Dog Diseases, Dogs, Parasitic Diseases, Animal, Pennsylvania, Recurrence, Prevalence

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