Please cite this article in press as: Beiromvand, M., et al., Prevalence of zoonotic intestinal parasites in domestic and stray
dogs in a rural area of Iran. PREVET (2012), http://dx.doi.org/10.1016/j.prevetmed.2012.09.009
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Preventive Veterinary Medicine
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Short communication
Prevalence of zoonotic intestinal parasites in domestic and stray dogs
in a rural area of Iran
Molouk Beiromvand
a
, Lame Akhlaghi
a
, Seyed Hossein Fattahi Massom
b
,
Ahmad Reza Meamar
a
, Abbas Motevalian
c
, Hormozd Oormazdi
a
, Elham Razmjou
a,∗
a
Department of Parasitology and Mycology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
b
Department of Thoracic Surgery, Ghaem Educational, Research and Treatment Center, Mashhad University of Medical Sciences, Mashhad, Iran
c
Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
a r t i c l e i n f o
Article history:
Received 2 April 2012
Received in revised form 7 September 2012
Accepted 16 September 2012
Keywords:
Dog
Taenia spp.
Echinococcus spp.
Toxocara spp.
Toxascaris leonina
Zoonoses
Chenaran
a b s t r a c t
Certain zoonotic parasites are enteropathogens in dogs that cause serious human disease
such as cystic echinococcosis, human alveolar echinococcosis, visceral larva migrans, and
ocular larva migrans. This study investigated the prevalence of intestinal parasites in dogs
in the Chenaran County, Razavi Khorasan Province, Iran. Sampling was carried out ran-
domly in 17 villages from November 2009 to January 2010. Seventy-seven fecal samples
from 28 domestic and 49 stray dogs were examined using sieving/flotation and modi-
fied Ziehl-Neelsen staining. Intestinal parasites were found in 51 of the 77 (66%) dogs
most common being Toxascaris leonina (29%, 22/77), Toxocara spp. (25%, 19/77), Eimeria
spp. (19%, 15/77), Taenia/Echinococcus spp. (18%, 14/77), Sarcocystis spp. (17%, 13/77), and
Dicrocoelium dendriticum (14%, 11/77). Lower infection rates of parasites were observed
for Trichuris vulpis (6%, 5/77), Cryptosporidium spp. (5%, 4/77), and Physaloptera spp. (3%,
2/77). Prevalence of infection by Dipylidium caninum, Capillaria spp., Cystoisospora spp., and
hookworms was similar (1%, 1/77). This study is the first report of the prevalence of intesti-
nal parasites of domestic and stray dogs in Chenaran County, Northeast Iran. The higher
prevalence of zoonotic intestinal parasites such as Toxascaris leonina, Toxocara spp. and Tae-
nia/Echinococcus spp. compared to other parasites indicates the need for control programs
to minimize the risk of transmission of zoonotic disease, particularly cystic echinococcosis,
alveolar echinococcosis, visceral larva migrans, and ocular larva migrans to people living in
these areas.
© 2012 Elsevier B.V. All rights reserved.
1. Introduction
Dogs are reservoirs, carriers, and transmitters of
several zoonotic intestinal parasites that are consid-
ered serious problems for humans (Xhaxhiu et al.,
2011). Some dog intestinal parasites, e.g. Echinococ-
cus granulosus, Echinococcus multilocularis, Toxocara canis,
Ancylostoma spp., Dipylidium caninum, Giardia spp., and
∗
Corresponding author. Tel.: +98 21 88622653; fax: +98 21 88622653.
E-mail addresses: erazmjou@tums.ac.ir, elhamrazmjou@yahoo.com
(E. Razmjou).
Cryptosporidium spp., through their oral–fecal transmission
cycle, are a potential source of infection in humans and wild
or domestic animals (Soriano et al., 2010). Infected domes-
tic and stray dogs can contaminate the environment with
helminth eggs and larvae as well as protozoan cysts and
oocysts (Okoye et al., 2011).
A growing body of evidence suggests that in rural areas
of Iran, human association with dogs potentially facili-
tates the transmission of zoonotic parasitic diseases of
canine origin such as echinococcosis to humans (Eslami
and Hosseini, 1998; Dalimi et al., 2006; Ranjbar-Bahadori
et al., 2008; Harandi et al., 2011). In some rural areas for
example, domestic dogs can be the definitive host, not
0167-5877/$ – see front matter © 2012 Elsevier B.V. All rights reserved.
http://dx.doi.org/10.1016/j.prevetmed.2012.09.009