Seroprevalence, risk factors and genotyping of Toxoplasma gondii in domestic geese ( Anser domestica ) in tropical China

Rong, Guang; Zhou, Hanlin; Hou, Guanyu; Zhao, Junlong; Xu, Tieshan; Guan, Song

doi:10.1186/preaccept-1506796653138778

Cited by 3 publications

(5 citation statements)

References 16 publications

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“…The results showed that ducks 1<years≤2 of age (OR: 4.1; 95% CI: 1.0-17.2) had four times higher risk of being positive compared with ducks ≤1 year-old, indicating that age may be a risk factor for T. gondii infection, in agreement with previous studies (40)(41)(42)(43). Age is widely considered as a risk factor for high infection rates of T. gondii (44,45).…”

Section: Discussionsupporting

confidence: 88%

“…Age is widely considered as a risk factor for high infection rates of T. gondii (44,45). This might be attributed to increased frequency of exposure to the infectious T. gondii oocysts or the cumulative effect of the time period during which an animal can be exposed to the parasite (43,46). The present study also showed that female ducks (OR: 3.1; 95% CI: 1.3-7.4) had three times higher risk of acquiring T. gondii infection compared with male ducks, suggesting that female ducks are more susceptible to T. gondii than male ducks (47).…”

Section: Discussionmentioning

confidence: 99%

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Molecular Detection of Toxoplasma gondii and Neospora caninum in Domestic Ducks in Hunan Province, China

Zheng

Yang

et al. 2021

Front. Vet. Sci.

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Toxoplasma gondii and Neospora caninum are protozoan parasites that infect warm-blooded animals, and cause major economic losses in livestock industries worldwide. However, little is known about the genotypes of T. gondii and N. caninum in domestic ducks in China. Herein, brain samples from 588 domestic ducks from Hunan province in China were examined for the presence of T. gondii and N. caninum. Polymerase chain reaction (PCR) was used to detect T. gondii B1 gene and N. caninum NC-5 gene. Forty-five DNA samples (7.7%; 95% CI: 5.5–9.9) were positive for B1 gene, and two (0.3%; 95% CI: 0–0.7) were positive for NC-5 gene. The risk factors significantly associated with T. gondii infection were age and sex. The 45 samples positive for T. gondii were genotyped using multi-locus PCR-RFLP analysis and only one sample was fully genotyped as ToxoDB#9 (Chinese I). These results provide new information about the epidemiology of T. gondii and N. caninum in ducks in Hunan province in China. The data also highlight the importance of a “One Health” approach to dealing with toxoplasmosis.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Molecular Detection of Toxoplasma gondii and Neospora caninum in Domestic Ducks in Hunan Province, China

Zheng

Yang

et al. 2021

Front. Vet. Sci.

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“…in Brazil. In Europe, seroprevalence ranges from 4.8%-43% (BARTOVÁ et al, 2009;MAKSIMOV et al, 2011;SANDSTRÖM et al, 2013) and from 4.7%-17% in Asia (MURAO et al, 2008;YAN et al, 2011;YANG et al, 2012;RONG et al, 2014). Geese populations from these studies comprised wild, domestic, and hunted animals.…”

Section: Discussionmentioning

confidence: 99%

“…Several serological tests have been employed to detect antibodies to T. gondii in anseriformes, such as enzyme-linked immunosorbent assay (ELISA) (MURAO et al, 2008;MAKSIMOV et al, 2011;IBRAHIM et al, 2018), direct agglutination test (DAT) (PRESTRUD et al, 2007), indirect hemagglutination (IHA) (HARFOUSH & TAHOON, 2010;RONG et al, 2014;NUNES, 2016), and modified agglutination test (MAT) (YANG et al, 2012;MANCIANTI et al, 2013;SANDSTRÖM et al, 2013;VERMA et al, 2016). However, there is still disagreement regarding the ideal method for detecting antibodies due to the variability of antigenic proteins, as well as differences in the sensitivity, and quality of commercial kits (SANTOS, 2012).…”

Section: Discussionmentioning

confidence: 99%

Serosurvey of Toxoplasma gondii, Sarcocystis sp. and Neospora caninum in geese (Anser sp.) from urban parks and captivity

Konell

Sato

Stival³

et al. 2019

Rev. Bras. Parasitol. Vet.

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Geese, ducks, mallards, and swans are birds of the order Anseriformes, which are found in the wild, in zoos and parks, and raised for meat consumption. Toxoplasma gondii, Sarcocystis sp., and Neospora caninum are protozoans of several species of animals. Wild and domestic birds can serve as intermediate hosts, disseminators and potential sources of infection of these protozoa to humans through contaminated meat. The aims of this study were: (i) to perform a serological survey of T. gondii, Sarcocystis sp. and N. caninum in geese (Anser sp.) from public parks and from captivity and (ii) to compare seroprevalence between these two locations. Antibodies were detected by Immunofluorescence antibody test using the serum of 149 geese. Antibodies to Sarcocystis sp., T. gondii, and N. caninum were detected in 28.18%, 18% and 0.67% of geese, respectively; 57% of geese from urban parks and 26.53% of geese from captivity were seropositive for at least one protozoa. The results indicate environmental contamination, particularly for the occurrence of antibodies against T. gondii – a zoonosis that causes toxoplasmosis and is transmitted through oocyte ingestion. This is the first serological survey of T. gondii, Sarcocystis sp. and N. caninum in geese from urban parks in Curitiba, Brazil.

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“…Limited information on T . gondii genotypes has been reported in patients, pets, food animals, poultry, birds and several species of wild animals [3,12–16]. The genotype ToxoDB#9 is predominant in different parts of China.…”

Section: Introductionmentioning

confidence: 99%

Molecular Detection and Genetic Characterization of Toxoplasma gondii in Farmed Minks (Neovison vison) in Northern China by PCR-RFLP

Zheng

Zhang

et al. 2016

PLoS ONE

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Toxoplasma gondii is a worldwide prevalent parasite, affecting a wide range of mammals and human beings. Little information is available about the distribution of genetic diversity of T. gondii infection in minks (Neovison vison). This study was conducted to estimate the prevalence and genetic characterization of T. gondii isolates from minks in China. A total of 418 minks brain tissue samples were collected from Jilin and Hebei provinces, northern China. Genomic DNA were extracted and assayed for T. gondii infection by semi-nested PCR of B1 gene. The positive DNA samples were typed at 10 genetic markers (SAG1, SAG2 (5'+3' SAG2, alter.SAG2), SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, and Apico) using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technology. 36 (8.6%) of 418 DNA samples were overall positive for T. gondii. Among them, 5 samples were genotyped at all loci, and 1 sample was genotyped for 9 loci. In total, five samples belong to ToxoDB PCR-RFLP genotype#9, one belong to ToxoDB genotye#3. To our knowledge, this is the first report of genetic characterization of T. gondii in minks in China. Meanwhile, these results revealed a distribution of T. gondii infection in minks in China. These data provided base-line information for controlling T. gondii infection in minks.

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Seroprevalence, risk factors and genotyping of Toxoplasma gondii in domestic geese ( Anser domestica ) in tropical China

Cited by 3 publications

References 16 publications

Molecular Detection of Toxoplasma gondii and Neospora caninum in Domestic Ducks in Hunan Province, China

Molecular Detection of Toxoplasma gondii and Neospora caninum in Domestic Ducks in Hunan Province, China

Serosurvey of Toxoplasma gondii, Sarcocystis sp. and Neospora caninum in geese (Anser sp.) from urban parks and captivity

Molecular Detection and Genetic Characterization of Toxoplasma gondii in Farmed Minks (Neovison vison) in Northern China by PCR-RFLP

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