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      Seroprevalence of Toxoplasma gondii in goats in Hunan province, China Translated title: Séroprévalence de Toxoplasma gondii chez les chèvres dans la province du Hunan, Chine

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          Abstract

          Toxoplasma gondii infections are prevalent in animals and humans worldwide. In the present investigation, the seroprevalence of T. gondii in goats was investigated in Hunan province, subtropical China between March 2014 and December 2015. A total of 1,028 serum samples collected from 14 administrative regions of Hunan province were evaluated by the indirect hemagglutination test (IHAT) for the detection of specific antibodies. Antibodies to T. gondii were detected in 124 serum samples (12%). The T. gondii seroprevalence ranged from 1.7% to 19% among different regions in subtropical China, and the differences were statistically significant ( p < 0.01). The results of the present survey indicated that T. gondii infection is prevalent in goats in Hunan, which poses a potential risk for human infection with T. gondii in this province.

          Translated abstract

          Les infections par Toxoplasma gondii sont répandues chez les animaux et les humains dans le monde entier. Dans la présente enquête, la séroprévalence de T. gondii chez les chèvres a été étudiée dans la province du Hunan, en Chine subtropicale, entre mars 2014 et décembre 2015. Un total de 1028 échantillons de sérum prélevés dans 14 régions administratives de la province du Hunan ont été évaluées par le test d’hémagglutination indirecte (IHAT) pour la détection d’anticorps spécifiques. Les anticorps dirigés contre T. gondii ont été détectés dans 124 échantillons de sérum (12 %). La séroprévalence de T. gondii a varié de 1.7 % à 19 % entre les différentes régions en Chine subtropicale, et les différences étaient statistiquement significatives ( p < 0.01). Les résultats de la présente étude indiquent que l’infection par T. gondii est très répandue chez les chèvres dans le Hunan, ce qui pose un risque potentiel pour l’infection humaine par T. gondii dans cette province.

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          Most cited references 14

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          Diagnosis of toxoplasmosis and typing of Toxoplasma gondii

          Toxoplasmosis, caused by the obligate intracellular protozoan Toxoplasma gondii, is an important zoonosis with medical and veterinary importance worldwide. The disease is mainly contracted by ingesting undercooked or raw meat containing viable tissue cysts, or by ingesting food or water contaminated with oocysts. The diagnosis and genetic characterization of T. gondii infection is crucial for the surveillance, prevention and control of toxoplasmosis. Traditional approaches for the diagnosis of toxoplasmosis include etiological, immunological and imaging techniques. Diagnosis of toxoplasmosis has been improved by the emergence of molecular technologies to amplify parasite nucleic acids. Among these, polymerase chain reaction (PCR)-based molecular techniques have been useful for the genetic characterization of T. gondii. Serotyping methods based on polymorphic polypeptides have the potential to become the choice for typing T. gondii in humans and animals. In this review, we summarize conventional non-DNA-based diagnostic methods, and the DNA-based molecular techniques for the diagnosis and genetic characterization of T. gondii. These techniques have provided foundations for further development of more effective and accurate detection of T. gondii infection. These advances will contribute to an improved understanding of the epidemiology, prevention and control of toxoplasmosis.
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            Seroprevalence of Toxoplasma gondii infection in cattle, sheep, goats and pigs from the North of Portugal for human consumption.

            Prevalence of antibodies to Toxoplasma gondii and risk factors associated with infection were assessed in food animals from the North of Portugal for human consumption. Antibodies were assayed by means of the modified agglutination test with a cut-off titre of 100 for cattle, and 20 for sheep, goats, and pigs; 7.5% of 161 cattle, 33.6% of 119 sheep, 18.5% of 184 goats, and 9.8% of 254 pigs were seropositive. Among the risk factors examined animal age was an important risk factor for seropositivity to T. gondii. The consumption of raw or undercooked meat should be regarded as an important source of infection to people in the study area. Copyright © 2012 Elsevier B.V. All rights reserved.
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              Seroprevalence of Toxoplasma gondii in horses and donkeys in Yunnan Province, Southwestern China

              Background Toxoplasma gondii is an intracellular protozoan parasite that infects almost all warm-blooded animals, including humans, with a worldwide distribution. There have been limited reports about the seroprevalence of T. gondii infection in equids around the world and little is known about the seroprevalence of T. gondii in equids in southwestern China, in particular in Yunnan Province. The objective of the present investigation was to estimate the seroprevalence of T. gondii infection in equids in this area. Methods A total of 399 serum samples (266 from horses and 133 from donkeys) were collected in 2012, and assayed for T. gondii antibodies by Indirect Haemagglutination (IHA) test using a commercially available kit. Results A total of 108 (27.1%) equids, including 81 (30.5%) horses and 27 (20.3%) donkeys were positive for T. gondii antibodies, and the seroprevalence ranged from 18.8% to 37.5% among different sampling areas. The seroprevalence was 27.4% and 26.8% for male and female equids, respectively, and the difference was not statistically significant (P > 0.05). The seroprevalence ranged from 21% to 32.9% among different age groups, and the difference was not statistically significant (P > 0.05). Conclusions The results of the present survey indicated the existence of high T. gondii seroprevalence in Yunnan Province, southwestern China, which has significant public health concern. Therefore, it is imperative that improved integrated measures be carried out to prevent and control T. gondii infection in equids in the studied region.
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                Author and article information

                Journal
                Parasite
                Parasite
                parasite
                Parasite
                EDP Sciences
                1252-607X
                1776-1042
                2016
                20 October 2016
                : 23
                : ( publisher-idID: parasite/2016/01 )
                Affiliations
                [1 ] Xiangya School of Medicine, Central South University Changsha Hunan province 410013 PR China
                [2 ] College of Veterinary Medicine, Hunan Agricultural University Changsha Hunan province 410128 PR China
                [3 ] Hunan Co-Innovation Center of Animal Production Safety Changsha Hunan province 410128 PR China
                [4 ] Animal Disease Prevention and Control Center of Hunan province 410001 PR China
                Author notes
                [* ]Corresponding author: liuguohua5202008@ 123456163.com
                Article
                parasite160056 10.1051/parasite/2016053
                10.1051/parasite/2016053
                5075832
                27762212
                © F. Li et al., published by EDP Sciences, 2016

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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                Figures: 0, Tables: 2, Equations: 0, References: 21, Pages: 4
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