Seroprevalence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies in domestic mammals from two distinct regions in the semi-arid region of Northeastern Brazil

Arraes-Santos, Ana I.; Araujo, Andreina C.; Guimarães, Maíra Freitas; Santos, Josenilton Rodrigues; Pena, Hilda Fátima Jesus; Gennari, Solange Maria; Azevêdo, Sérgio Santos de; Labruna, Marcelo B.; Horta, Maurício Cláudio

doi:10.1016/j.vprsr.2016.08.007

Cited by 13 publications

(9 citation statements)

References 32 publications

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“…In some studies, the age, breed, presence of dogs in flocks, and season are presented as risk factors important for the prevalence of neosporosis, which is not confirmed by some other studies (1,2,6,8,13,14,16,22,26,34,37,39,41). As a general consensus, the sex of the animals is thought to have no effect on the prevalence of the disease (6,12,(14)(15)(16). In this study, statistical analysis indicates that the co-presence of sheep, the animals' being of pure breed and the purchasing of animals from different flocks are factors that increase the prevalence of neosporosis, while feeder disinfection decreases it (P < 0.05) (Tab.…”

Section: Tab 2 Serological Studies On Caprine Neosporosis In Differmentioning

confidence: 98%

Investigation of anti-Neospora caninum antibodies and disease-related risk factors in goats

Ütük¹,

Eşki²

2019

Medycyna Weterynaryjna

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Neospora caninum is a parasitic protozoan that causes abortion, stillbirth, and premature culling in goats. The aims of this study were (i) to determine the prevalence of anti-N. caninum antibodies in goats in the Adana province of Turkey(ii), to identify risk factors for the disease, and (iii) to provide collective data on goat neosporosis. For this purpose, 383 sera were collected from goats of different breeds, ages, and sexes from 15 counties of Adana. A commercially available c-ELISA test kit was used to detect anti-N. caninum antibodies. To identify risk factors that influence the prevalence of neosporosis, an oral survey was conducted, and the data collected were evaluated by the logistic regression analysis. The prevalence was determined as 8.9% (34/383) at the individual level and 66.6% (10/15) at the flock level. Statistical analysis indicated that the co-presence of sheep, the animals’ being of pure breed and the purchasing of animals from different flocks are the factors that increase the prevalence of neosporosis, while feeder disinfection decreases it.

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Section: Tab 2 Serological Studies On Caprine Neosporosis In Differmentioning

confidence: 98%

Investigation of anti-Neospora caninum antibodies and disease-related risk factors in goats

Ütük¹,

Eşki²

2019

Medycyna Weterynaryjna

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“…Another parasite that can cause reproductive problems is Neospora caninum, first described in 2004 by Figliuolo et al (2004) that reported the prevalence of 6.4% in goat herds in the state of São Paulo. Since then, several studies have been conducted in other states such Paraíba (3.3%; Faria et al, 2007;and 26.11%;Braz et al, 2018), Rio Grande do Norte (1.05%; Lima et al, 2008), and Pernambuco (64,2%; Tembue et al, 2011;and 2.04%;Arraes-Santos et al, 2016). Although the various serologic studies in Brazilian goats' herds, the reproductive impairment caused by N. caninum is still scarce evaluated (Braz et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Toxoplasma gondii and Neospora caninum infections and factors associated in goats in the Parana state, Southern Brazil

Romanelli

Matos

Ferreira

et al. 2020

Rev. Bras. Parasitol. Vet.

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The aim of this study was to determine the occurrence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies and their associated factors among goats in farms from the Paraná state, South Brazil. The serological analysis was performed by indirect ELISA on 629 goat serum samples collected from 32 farms distributed in five mesorregions from the state. Seropositivity was observed in 30.7% of the animals for T. gondii, 6.3% for N. caninum, and 3.0% for both agents. Final multiple regression models showed that the use of assisted reproduction decreased the chance of seropositivity for T. gondii (PR=0.70) and the slaughtering site on the farm (PR=2.03) increased it. To N. caninum, the supplying concentrated feed to animals (OR=4.80) and animal pre-weaning death (OR=9.96) increased the chance of seropositivity. The variables associated with these seropositivities suggest deficiencies in sanitation and reproductive management. In addition, it recognizes critical points of infection for animal production management.

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“…With the advancement of age, females enter the reproductive life stage, contributing to the vertical transmission of the disease; the animals also increase the likelihood of contact with various agent transmission routes, resulting in horizontal transmission. Arraes-Santos et al (2016) found a prevalence of 21.8% (39/179) in Petrolina municipalities and 5.2% (8/153) in a National Park. Multivariate analysis revealed the variable "age (6 months to 1 year)" as a risk factor.…”

Section: Resultsmentioning

confidence: 92%

“…Regarding the epidemiology in ovine populations, some studies have demonstrated variables related to dogs as associated factors; other studies describe specific factors, such as management specificities (Abo-Shehada & Abu-Halaweh, 2010;Al-Majali, Jawasreh, Talafha, & Talafha, 2008;Arraes-Santos et al, 2016;Rocha et al, 2014). Even though some similar factors were found in different studies and locations, a systematic review coupled with meta-analysis, aiming to estimate the pooled prevalence and combined associated factors, will help to advance our knowledge regarding this infection.…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence and associated risk factors of ovine neosporosis worldwide: a systematic review and meta-analysis

Romanelli¹,

Caldart²,

Martins³

et al. 2021

Semina: Ciênc. Agrár.

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Neosporosis, caused by the protozoan Neospora caninum, has been widely reported and discussed as a major disease associated with reproductive problems in herds of various animal species. This study aimed to perform a systematic review and meta-analysis on the prevalence and risk factors associated with ovine neosporosis worldwide. This is the first systematic review, which was performed according to the established preferred reporting items in systematic reviews and meta-analyses (PRISMA) guidelines to address ovine neosporosis. Four databases were used in this study: PubMed, SciELO, Web of Science, and Scopus. The selected keywords were “neospora AND sheep,” “neosporosis AND sheep,” “neospora AND lamb,” “neosporosis AND lamb,” “neospora AND ewe,” and “neosporosis AND ewe.” The meta-analysis calculations were performed with random-effects models for proportions, and heterogeneity was tested using the I2 test. This study identified 24 studies on ovine neosporosis, nine of which evaluated the factors associated with the risk of seropositivity. After meta-analysis, the pooled estimated prevalence was 12% (95% CI, 8-16%; I² p-value < 0.01). The evaluation of the included studies allowed the identification of ovine neosporosis distribution in continents according to demonstrated prevalence rates. We confirmed via metaanalysis that the use of indirect immunofluorescence assay (IFAT) or enzyme-linked immunosorbent assay (ELISA) in the diagnosis of ovine neosporosis was not a source of data heterogeneity. The presence of dogs on the properties was reported as the main risk factor associated with the occurrence of ovine neosporosis; however, this was not confirmed by the meta-analysis.

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Seroprevalence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies in domestic mammals from two distinct regions in the semi-arid region of Northeastern Brazil

Cited by 13 publications

References 32 publications

Investigation of anti-Neospora caninum antibodies and disease-related risk factors in goats

Investigation of anti-Neospora caninum antibodies and disease-related risk factors in goats

Toxoplasma gondii and Neospora caninum infections and factors associated in goats in the Parana state, Southern Brazil

Seroprevalence and associated risk factors of ovine neosporosis worldwide: a systematic review and meta-analysis

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