Antibodies against Neospora caninum, Sarcocystis spp. and Toxoplasma gondii detected in buffaloes from Rio Grande do Sul, Brazil

Portella, Luiza Pires; Cadore, Gustavo Cauduro; Lima, Marcelo de; Sangioni, Luís Antônio; Fischer, Geferson; Vogel, Fernanda Silveira Flôres

doi:10.1590/s0100-736x2016001000005

Cited by 4 publications

(3 citation statements)

References 30 publications

(37 reference statements)

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“…To the authors' knowledge, this is the first study reporting the occurrence of N. caninum infection in female water buffaloes in the State of Pernambuco, Northeastern Brazil. In Brazil, the prevalence of N. caninum infection in water buffaloes varies from 14.6% to 88.0% (FUJII et al, 2001;SOUZA et al, 2001;GENNARI et al, 2005;RODRIGUES et al, 2005;VOGEL et al, 2006;GONDIM et al, 2007;SILVA et al, 2010SILVA et al, , 2014SILVA et al, , 2017GALVÃO et al, 2013;BRASIL et al, 2015;CHRYSSAFIDIS et al, 2015;PORTELLA et al, 2016). Comparing results across seroepidemiogical surveys carried out by different researchers is particularly challenging, as the methodology applied, including sampling and diagnostic tests can vary between studies, especially concerning IFAT cut-off values.…”

Section: Discussionmentioning

confidence: 99%

“…Search for anti-N. caninum antibodies on serum samples of water buffaloes was performed using the Indirect Fluorescence Antibody Test (IFAT) (DUBEY et al, 1998), using slides pre-sensitized with the NcSp7 strain, with fluorescein isothiocyanate-labeled anti-IgG bovine (Sigma, St. Louis, USA) (KENGRADOMKIJ et al, 2015). A cut-off value with the IFAT at 1:100 dilution was used (PORTELLA et al, 2016). IFAT slides were examined by fluorescence microscopy using an epifluorescence microscope (Olympus Bx 51, Olympus Inc., Tokyo, Japan) at 400x magnification.…”

Section: Serologymentioning

confidence: 99%

“…buffalo herd is in Northeast, with 10,437 thousand heads located in the state of Pernambuco (IBGE, 2016). Many serological surveys on N. caninum infection in water buffaloes have been carried out by researchers in different parts of the world with prevalences ranging from 1.50 to 88.30% (BRASIL et al, 2015;CAMPERO et al, 2007;CHRYSSAFIDIS et al, 2015;DUBEY et al, 1998;FUJII et al, 2001;FERROGLIO et al, 2003;GALVÃO et al, 2013;GONDIM et al, 2007;GUARINO et al, 2000;GENNARI et al, 2005;HUONG et al, 1998;HAMIDINEJAT et al, 2015;KONNAI et al, 2008;KONRAD et al, 2013;MEENAKSHI et al, 2007;MOORE et al, 2014;NASIR et al, 2011;NEVERAUSKAS et al, 2015;PORTELLA et al, 2016;RODRIGUES et al, 2005;ROMERO-SALAS et al, 2017;SOUZA et al, 2001;SENGUPTA et al, 2012;SILVA et al, 2010SILVA et al, , 2014SILVA et al, , 2017VOGEL et al, 2006;YU et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Prevalence and associated factors with Neospora caninum infection in female water buffaloes (Bubalus bubalis) from Pernambuco, Brazil

Oliveira

Soares

Borges

et al. 2018

Rev. Bras. Parasitol. Vet.

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Neosporosis is one of the major parasitic diseases that causes reproductive problems, making it a limitation for optimal efficiency in livestock. The aim of the present study was to conduct a seroepidemiological survey for bubaline neosporosis and to analyse associated factors associated with N. caninum infection in female water buffaloes in the State of Pernambuco, northeast Brazil. The prevalence of N. caninum infection in the bubaline herds examined was 35.4% (122/345; 95% CI: 30.4%-40.7%), at least 1 Neospora-positive animal was found in each farm. Associated factors for N. caninum infection identified in this study were exclusive pasture feeding (OR: 5.91, p <0.001) and purchase of animals of free fair and from reputable sellers (OR: 1.85; p =0.045). In this survey, we document the occurrence of neosporosis in female water buffaloes. Associated factors should be controlled in order to reduce the risk of N. caninum infection in these herds.

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Section: Discussionmentioning

confidence: 99%

Section: Serologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prevalence and associated factors with Neospora caninum infection in female water buffaloes (Bubalus bubalis) from Pernambuco, Brazil

Oliveira

Soares

Borges

et al. 2018

Rev. Bras. Parasitol. Vet.

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The global seroprevalence ofToxoplasma gondiiinfection in bovines: a systematic review and meta-analysis

et al. 2021

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A Review of Toxoplasmosis and Neosporosis in Water Buffalo (Bubalus bubalis)

et al. 2020

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Toxoplasmosis and neosporosis are diseases with worldwide distribution that are associated with reproductive problems in livestock and responsible for economic losses. This review presents an overview of the current knowledge relative to these diseases in water buffalo (Bubalus bubalis). In general, buffalo are considered resistant to clinical toxoplasmosis because there are studies only reporting serological evidence of natural infection in these animals. Studies have described age, poor hygienic status of the farm, and presence of cats as risk factors for the development of Toxoplasma gondii infection in buffalo. It must be highlighted that buffalo meat, which does not receive adequate freezing treatment, could be a potential source for toxoplasmic human infection as well as the importance of raw buffalo milk in the transmission of toxoplasmosis to human beings. Neospora caninum is considered one of the major causes of abortion and responsible for huge economic losses in cattle. Vertical transmission is the main route to infect calves, and is responsible for maintaining the parasite within a herd. In buffalo, vertical transmission is also described; moreover, although there are indications that N. caninum may be associated with abortion in dairy buffalo, the reproductive importance of neosporosis is apparently lower in buffalo relative to cattle. Most studies have identified a higher time of exposition to N. caninum oocysts relative to age. The household system was also described as a risk factor for infection, possibly due to persistent contact between the home-raised buffalo and canids. The fetal immune competence of buffalo is similar to bovine, and buffalo fetus are highly susceptible to infection during the first trimester of pregnancy, indicating that N. caninum may be an abortigenic agent in buffaloes. Alternatively, it is interesting to note there is evidence that the inflammatory response in pregnant buffalo infected with N. caninum is mild enough to avoid abortion in most cases. It is proposed that the possible transmission of toxoplasmosis through unprocessed milk and buffalo meat may occur, which is important in terms of public health. Additionally, there is strong evidence to suggest that N. caninum may be associated with abortion in buffalo.

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Antibodies against Neospora caninum, Sarcocystis spp. and Toxoplasma gondii detected in buffaloes from Rio Grande do Sul, Brazil

Cited by 4 publications

References 30 publications

Prevalence and associated factors with Neospora caninum infection in female water buffaloes (Bubalus bubalis) from Pernambuco, Brazil

Prevalence and associated factors with Neospora caninum infection in female water buffaloes (Bubalus bubalis) from Pernambuco, Brazil

The global seroprevalence ofToxoplasma gondiiinfection in bovines: a systematic review and meta-analysis

A Review of Toxoplasmosis and Neosporosis in Water Buffalo (Bubalus bubalis)

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