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Veterinary Parasitology: Regional Studies and Reports
journal homepage: www.elsevier.com/locate/vprsr
Original Article
Prevalence of endoparasites in northern Mississippi shelter cats
Christina M. Loftin
a,1
, Uri B. Donnett
a,2
, Liesel G. Schneider
b
, Andrea S. Varela-Stokes
c,
⁎
a
Mississippi State University, Department of Clinical Sciences, College of Veterinary Medicine, 240 Wise Center Drive, Mississippi State MS39762, USA
b
University of Tennessee Institute of Agriculture, Department of Animal Science, 2506 River Dr., Knoxville TN37996, USA
c
Mississippi State University, Department of Basic Sciences, College of Veterinary Medicine, 240 Wise Center Drive, Mississippi State MS39762, USA
ARTICLE INFO
Keywords:
Feline
Gastrointestinal parasites
Urinary parasites
Zoonosis
Public health
Southeast
ABSTRACT
Parasitism of domestic cats impacts feline health and public health, when zoonotic parasites are present. Our
objective was to evaluate endoparasite prevalence in cats from northern Mississippi animal shelters. Feline
cadavers (n = 56) were collected from seven shelters from August 2017 to January 2018. Data included shelter,
sex, reproductive status, intake date, originating source, and treatment records. Cadavers were processed to
isolate stomach, and small and large intestines. Contents were strained and examined using stereomicroscopes
for helminth collection and identifcation. Centrifugal fotation using Sheather's solution was performed on feces;
urine sediments were also examined. Descriptive statistics in SAS was performed using the Frequency procedure.
Kappa agreement statistics were obtained to determine agreement between fecal fotation and necropsy results.
Separate logistic regression models were developed to test efects of risk factors on the probability for cats to test
positive for outcomes of interest. Helminths were recovered in 82% of cats (46/56); specifcally, Ancylostoma
spp. (52%), Toxocara cati (43%), Taenia taeniaeformis (36%), Dipylidium caninum (29%), and Spirometra spp.
(4%) were identifed. Thirty-seven of 56 cats (66%) had parasite eggs or oocysts on fecal examination, including
T. cati (39%), Ancylostoma spp. (34%), Cystoisospora spp. (23%), Spirometra spp. (9%), T. taeniaeformis (9%), and
capillarid-type eggs (5%). Feline originating source was associated with presence of T. cati eggs in feces and
presence of D. caninum in the gastrointestinal tract. Feral cats were more likely to have T. cati eggs in feces than
owner surrender cats (OR 28; 95% CI: 1.9, 423), or stray cats (OR 8, 95% CI: 1.1, 57.0). Owner surrender cats
were more likely to have D. caninum helminths in the gastrointestinal tract than stray cats (OR = 19.5; 95% CI:
2.0, 190). Toxocara cati exhibited strong agreement (κ = 0.70, 95% CI: 0.52, 0.89), Ancylostoma spp. exhibited
moderate agreement (κ = 0.44, 95% CI: 0.22, 0.65), and cestodes exhibited poor agreement (κ = 0.02, 95% CI:
−0.12, 0.15) between presence of eggs and gross helminths. Capillarid eggs (Pearsonema feliscati) were re-
covered in urine sediment of 6% (3/48) of cats. Overall, our study demonstrates a high level of parasitism in cats
that entered Mississippi animal shelters. Parasites with zoonotic potential, such as Alaria spp., Ancylostoma spp.,
D. caninum, Physaloptera spp., T. taeniaeformis, T. cati, and Spirometra spp. were identifed. Our results support
the need for efective antiparasitic treatment of cats entering animal shelters in order to improve feline health
and prevent environmental contamination with zoonotic parasites.
1. Introduction
Society often considers companion animals as important members
of the household family. In fact, interactions with these animals have
been associated with positive health efects in people, such as reduced
anxiety and blood pressure (Friedmann et al., 1983; Wilson, 1991).
Ownership of the domestic cat has been on the rise over the last two
decades, with American families commonly obtaining cats from either
animal shelters or as free-roaming/stray cats (APPA, 2017). While the
exact numbers on feline intake and their outcomes are unknown in the
shelter industry, The American Society for the Prevention of Cruelty to
Animals estimates that in the United States, approximately 3.2 million
cats enter animal shelters every year and 1.6 million cats are adopted
annually (ASPCA, 2017). Thus, animal shelters handle a large volume
of cats, often free-roaming or stray cats with unknown medical his-
tories.
Many studies have demonstrated that free-roaming, stray, and feral
cats are commonly afected by both external and internal parasites both
https://doi.org/10.1016/j.vprsr.2019.100322
Received 31 January 2019; Received in revised form 27 June 2019; Accepted 23 July 2019
⁎
Corresponding author.
E-mail address: Stokes@cvm.msstate.edu (A.S. Varela-Stokes).
1
Present address: Mississippi State University, Center for Community-Engaged Learning, 55 Magruder St, Mississippi State MS 39762, USA
2
Present address: University of Wisconsin-Madison, Department of Medical Sciences, School of Veterinary Medicine, 2015 Linden Drive, Madison, WI 53706, USA
Veterinary Parasitology: Regional Studies and Reports 18 (2019) 100322
Available online 24 July 2019
2405-9390/ © 2019 Elsevier B.V. All rights reserved.
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