Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, Iran

Background: Toxoplasma gondii infects a wide range of animals; felines are definitive hosts and other animals including the dogs are intermediate hosts. The aim of this study was to determine the seroprevalence of T. gondii infection in dogs in Tehran, capital of Iran and to investigate possi­ble as...

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Main Authors: M Hosseininejad, A Malmasi, F Hosseini, M Selk-Ghaffari, N Khorrami, M Mohebali, S Shojaee, A Mirani, M Azizzadeh, P Mirshokraei, A Aliari
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2011-03-01
Series:Iranian Journal of Parasitology
Subjects:
Online Access:https://ijpa.tums.ac.ir/index.php/ijpa/article/view/169
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author M Hosseininejad
A Malmasi
F Hosseini
M Selk-Ghaffari
N Khorrami
M Mohebali
S Shojaee
A Mirani
M Azizzadeh
P Mirshokraei
A Aliari
author_facet M Hosseininejad
A Malmasi
F Hosseini
M Selk-Ghaffari
N Khorrami
M Mohebali
S Shojaee
A Mirani
M Azizzadeh
P Mirshokraei
A Aliari
author_sort M Hosseininejad
collection DOAJ
description Background: Toxoplasma gondii infects a wide range of animals; felines are definitive hosts and other animals including the dogs are intermediate hosts. The aim of this study was to determine the seroprevalence of T. gondii infection in dogs in Tehran, capital of Iran and to investigate possi­ble associated risk factors. Methods: Three hundreds ninety six serum samples were collected during 2007-8 from the dogs. Col­lected samples were tested using an indirect fluorescent antibody test (IFAT) in dilutions of 1:16 and more. All procedures were carried out in Shahrekord University, Iran. All the data were analyzed using SPSS software, qui square test with confidence interval of 0.95. Results: From evaluated samples, 89 (22.47%) were positive in titers of at least 1:16. further evalua­tions in other dilutions showed positive results in dilutions of maximum 1:16 , 1:32, 1:64, 1:128 and 1:256 in 38, 29, 15, 2 and 5 dogs respectively. Investigation of the role of risk factors showed no sex predisposition while infection rate was significantly higher in dogs older than one year old. Living places were of significant importance; infection rate was significantly higher in stray or guard dogs in compare with household dogs (P<0.05). Conclusion: Relatively high seroprevalence of T. gondii infection in dogs in Tehran shows high environmental contamination. It is recommended that the dogs with suspected clinical signs be tested for T. gondii infection.
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spelling doaj.art-fda413bde70041e3afe878a22bdf8b762022-12-21T20:41:03ZengTehran University of Medical SciencesIranian Journal of Parasitology1735-70202008-238X2011-03-0161Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, IranM Hosseininejad0A Malmasi1F Hosseini2M Selk-Ghaffari3N Khorrami4M Mohebali5S Shojaee6A Mirani7M Azizzadeh8P Mirshokraei9A Aliari10Faculty of Veterinary Medicine, University of Shahrekord, Shahrekord, Iran AND Research Institute of Animal Embryo Technology, University of Shahrekord, Iran AND Research Institute of Zoonotic Diseases, University of Shahrekord, Shahrekord, IranFaculty of Veterinary Medicine, University of Tehran, Tehran, IranFaculty of Veterinary Medicine, University of Shahrekord, Shahrekord, IranFaculty of Veterinary Medicine, Islamic Azad University- Karadj Branch, Karadj, IranFaculty of Veterinary Medicine, University of Tehran, Tehran, IranSchool of Public Health, Tehran University of Medical Sciences, Tehran, IranSchool of Public Health, Tehran University of Medical Sciences, Tehran, IranResearch Institute of Zoonotic Diseases, University of Shahrekord, Shahrekord, IranFaculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, IranResearch Institute of Animal Embryo Technology, University of Shahrekord, IranFaculty of Veterinary Medicine, University of Tehran, Tehran, IranBackground: Toxoplasma gondii infects a wide range of animals; felines are definitive hosts and other animals including the dogs are intermediate hosts. The aim of this study was to determine the seroprevalence of T. gondii infection in dogs in Tehran, capital of Iran and to investigate possi­ble associated risk factors. Methods: Three hundreds ninety six serum samples were collected during 2007-8 from the dogs. Col­lected samples were tested using an indirect fluorescent antibody test (IFAT) in dilutions of 1:16 and more. All procedures were carried out in Shahrekord University, Iran. All the data were analyzed using SPSS software, qui square test with confidence interval of 0.95. Results: From evaluated samples, 89 (22.47%) were positive in titers of at least 1:16. further evalua­tions in other dilutions showed positive results in dilutions of maximum 1:16 , 1:32, 1:64, 1:128 and 1:256 in 38, 29, 15, 2 and 5 dogs respectively. Investigation of the role of risk factors showed no sex predisposition while infection rate was significantly higher in dogs older than one year old. Living places were of significant importance; infection rate was significantly higher in stray or guard dogs in compare with household dogs (P<0.05). Conclusion: Relatively high seroprevalence of T. gondii infection in dogs in Tehran shows high environmental contamination. It is recommended that the dogs with suspected clinical signs be tested for T. gondii infection.https://ijpa.tums.ac.ir/index.php/ijpa/article/view/169Toxoplasma gondiiDogsPrevalenceIran
spellingShingle M Hosseininejad
A Malmasi
F Hosseini
M Selk-Ghaffari
N Khorrami
M Mohebali
S Shojaee
A Mirani
M Azizzadeh
P Mirshokraei
A Aliari
Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, Iran
Iranian Journal of Parasitology
Toxoplasma gondii
Dogs
Prevalence
Iran
title Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, Iran
title_full Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, Iran
title_fullStr Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, Iran
title_full_unstemmed Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, Iran
title_short Seroprevalence of Toxoplasma gondii Infection in Dogs in Tehran, Iran
title_sort seroprevalence of toxoplasma gondii infection in dogs in tehran iran
topic Toxoplasma gondii
Dogs
Prevalence
Iran
url https://ijpa.tums.ac.ir/index.php/ijpa/article/view/169
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