Seroprevalence and risk factors of Toxoplasma gondii and Neospora caninum infections in small ruminants in China

Liu, Zi-Kui; Li, Jianyong; Hu, Pan

doi:10.1016/j.prevetmed.2014.12.017

Cited by 64 publications

(56 citation statements)

References 34 publications

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“…This finding is also consistent with previous reports [3, 10, 25]. Liu et al reported that the odds of the presence of T. gondii antibodies increased 3.2-fold if cats were present on the farms [25].…”

Section: Resultssupporting

confidence: 93%

“…Compared with other provinces in China, the prevalence of 12.71% in sheep was lower than the prevalence of 20.3% in Gansu [44], and 21.33% in Qinghai [25], but higher than the reported prevalence of 3.0% in Heilongjiang [37], 4.4% in Liaoning [43], and 9.7% in Yunnan [45]. These differences may be due to different ecological conditions, climates, serological techniques used, survey periods, sample sizes, and the breed of sheep.…”

Section: Resultsmentioning

confidence: 99%

“…In China, several surveys have shown that infection of sheep with T. gondii is common in other provinces (Table 1; [25, 42, 45]), but there have been no reports of T. gondii infection in sheep in Henan province in central China.…”

Section: Introductionmentioning

confidence: 99%

“…testedNo. positivePrevalence (%)MethodB ReferenceHeilongjiang2008–2010Not shown792243.0IHA[37]Liaoning2011At all ages566254.4IHA[43]Jinzhou2012At all ages4027217.9MAT[42]Qinghai2012–2013≥1 year60012821.3ELISA[25]Yunnan2012–2013At all ages154159.7IHA[45]Gansu2013–2014At all ages173235220.3MAT[44]AYears of sampling are listed as published in the references.BIHA: indirect hemagglutination test; MAT: modified agglutinatio...…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Seroprevalence ofToxoplasma gondiiinfection and risk factors in domestic sheep in Henan province, central China

Zhang¹,

Wang²,

Wang³

et al. 2016

Parasite

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Sheep are highly susceptible to infections with Toxoplasma gondii and play a major role in the transmission of toxoplasmosis to humans. In the present study, 779 serum samples from sheep were collected from Henan province, central China from March 2015 to May 2016, and antibodies to T. gondii were detected by modified agglutination test (MAT). The overall seroprevalence of T. gondii in sheep was 12.71% (99/779). The risk factors significantly associated with T. gondii seroprevalence were the geographical origin, age, presence of cats, and the rearing system. This is the first report of T. gondii infection in sheep in Henan province, central China, and of an association of seropositivity to T. gondii with risk factors.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seroprevalence ofToxoplasma gondiiinfection and risk factors in domestic sheep in Henan province, central China

Zhang¹,

Wang²,

Wang³

et al. 2016

Parasite

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“…Contrary to other study findings (VESCO et al, 2007;LIU et al, 2015), no association was found between the presence of cats and the occurrence of infection in sheep (p= 0.431) in the present study. However, this may have occurred because of the sampling design used.…”

Section: Resultscontrasting

confidence: 99%

Epidemiological analysis of Toxoplasma gondii infection in sheep in the state of Pernambuco, Brazil

Lúcio

Pimentel

Clemente

et al. 2017

SCA

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The objective of this study was to determine the seroprevalence of anti-Toxoplasma gondii antibodies in sheep from the Agreste and Sertão regions of Pernambuco in Brazil and to analyze the risk factors associated with T. gondii infection. A total of 250 sheep from 14 sheep farms across the state of Pernambuco were used as samples. Indirect Fluorescent Antibody Test (IFAT) was used for the detection of anti-T. gondii antibodies, adopting a cut-off dilution of 1:64. In order to determine risk factors, farm owners were subjected to a questionnaire form enquiring about the aspects of operational hygiene and sanitary systems. Thirty-four of the 250 samples (13.60%, 95% CI= 9.61% -18.48%) in the study were determined to be positive, and 10 out of 14 (71.42%) of the sheep farms showed at least one seropositive animal. Titers for the 34 positive samples presented 8 samples at 64 (23.53%), 3 at 128 (8.82%), 3 at 256 (8.82%), 13 at 512 (38.23%), and 7 at 1024 (20.60%). After regression logistics, only the supply of silage (p= 0.009; OR=2.79, CI 95%= 1.29 -6.0) was confirmed as a risk factor. The study was able to conclude that infection with T. gondii was prevalent in the sampled sheep farms in the state of Pernambuco, and that it was imperative to adopt preventive measures in order to effectively curb the identified risk factors. Key words: Infection. Sheep. Pernambuco. Toxoplasmosis. ResumoObjetivou-se com este estudo determinar a prevalência de anticorpos anti-Toxoplasma gondii e analisar os fatores de riscos associados à infecção em ovinos no Agreste e Sertão do estado de Pernambuco. Para tal foram utilizadas 14 propriedades de ovinos totalizando 250 animais. Utilizou-se para a pesquisa Lúcio, E. C. et al.de anticorpos anti-Toxoplasma gondii a técnica de Imunofluorescência Indireta (RIFI), adotando-se ponto de corte de 1:64. No estudo dos fatores de risco foram aplicados questionários com perguntas objetivas sobre os aspectos do manejo higiênico-sanitário. Das 250 amostras analisadas 34 (13,60%, IC 95% -9,61%; 18,48%) foram positivas; 71,42% (10/14) das propriedades apresentaram ao menos um animal positivo. Em relação à titulação, observou-se que das 34 amostras positivas, oito apresentaram título de 64 (23,53%); três títulos 128 (8,82%); três títulos 256 (8,82%); 13 títulos 512 (38,23%); e sete (20,60%) apresentaram título de 1024. Após regressão logística apenas a variável fornecimento de silagem (p=0,009; OR=2,79 IC 95%=1,29 -6,0) foi confirmada como fator de risco. Conclui-se que a infecção por Toxoplasma gondii está presente nas criações de ovinos na região estudada, sendo necessário à adoção de medidas preventivas e de controle que atuem nos fatores de risco identificados neste estudo. Palavras-chave: Infecção. Ovelha. Pernambuco. Toxoplasmose.

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Molecular prevalence ofToxoplasma gondiiDNAin goats’ milk and seroprevalence in Northwest Tunisia

Amairia

Rouatbi

Rjeibi

et al. 2016

Veterinary Medicine & Sci

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Toxoplasmosis is a worldwide zoonosis with high impact on human and animal health. Consumption of unpasteurized milk is a risk factor of human toxoplasmosis. The aim of this study was to estimate the seroprevalence and molecular prevalence of T. gondii in goats’ milk in Northwest of Tunisia (Jendouba Governorate). A total number of 77 blood samples were collected from six herds were screened with a commercial ELISA kit for T. gondii antibodies. For the same goats’ samples, a nested PCR was performed to detect T. gondii DNA in milk. The seroprevalence of T. gondii infection was 31.2% (±0.05) while the molecular prevalence of this parasite in milk was estimated to 7.8% (±0.03). A very low value of kappa showed that there is not agreement between seroprevalence and parasite prevalence in milk. These results suggest that the consumption of raw milk from naturally infected goats is a potential source of human infection. An extension programme should be implemented to decrease related to goats’ raw milk consumption.

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Seroprevalence and risk factors of Toxoplasma gondii and Neospora caninum infections in small ruminants in China

Cited by 64 publications

References 34 publications

Seroprevalence ofToxoplasma gondiiinfection and risk factors in domestic sheep in Henan province, central China

Seroprevalence ofToxoplasma gondiiinfection and risk factors in domestic sheep in Henan province, central China

Epidemiological analysis of Toxoplasma gondii infection in sheep in the state of Pernambuco, Brazil

Molecular prevalence ofToxoplasma gondiiDNAin goats’ milk and seroprevalence in Northwest Tunisia

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