Prevalência de anticorpos anti-Toxoplasma gondii em bovinos abatidos em matadouros do estado da Bahia, Brasil

Spagnol, Fernando H.; Paranhos, Elisson B.; Oliveira, Laura Lúcia dos Santos; Medeiros, Simoni Machado de; Lopes, Carlos Wilson Gomes; Albuquerque, George Rêgo

doi:10.4322/rbpv.01802009

Cited by 15 publications

(8 citation statements)

References 8 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although in the present study, the seroprevalence in cattle is considered low compared to those observed in other studies, such as Daguer et al . [14] (41.4%), Ogawa et al [41] (26.0%), Albuquerque et al [33] (14.77%) and Spagnol et al [42] (11.83%), we revealed that of the 53 farms analyzed, 17 (34.69%) had one or more positive cattle. It is a considerable percentage, when compared to those found by other authors, such as Marques et al .…”

Section: Discussionsupporting

confidence: 48%

“…Several studies performed in Brazil [14,33,36,41,42] and other countries [6,20,22,24,26,34] aimed to investigate the seroprevalence of T. gondii in cattle, the main species consumed by humans around the world. In 2009, the effective national cattle attained more than 205 million heads, placing Brazil as the second largest producer and largest exporter of beef in the world (http://www.ibge.gov.br).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Seroprevalence and risk factors of toxoplasmosis in cattle from extensive and semi-intensive rearing systems at Zona da Mata, Minas Gerais state, Southern Brazil

et al. 2013

View full text Add to dashboard Cite

BackgroundConcerning the infection of humans by T. gondii, limited efforts have been directed to the elucidation of the role of horizontal transmission between hosts. One of the main routes of transmission from animals to humans occurs through the ingestion of raw or insufficiently cooked meat. However, even though the detection of T. gondii in meat constitutes an important short-term measure, control strategies can only be accomplished by a deeper understanding of the epidemiology of toxoplasmosis. The present study aimed to investigate the seroprevalence of toxoplasmosis in cattle from Zona da Mata, Minas Gerais, Brazil, and to identify associated risk factors, through an epidemiological investigation.MethodsThe animals studied (Bos indicus, breed Nelore or Gir) were reared in the Zona da Mata micro-region and killed at a commercial slaughterhouse at Juiz de Fora, Minas Gerais state. The animals came from 53 cattle farms with extensive (predominantly pasture feeding management) or semi-intensive (food management based on grazing, salt mineral and feed supplementation) rearing systems. Blood samples were collected from 1200 animals, and assigned to Indirect Fluorescent Antibody Test.ResultsWhen analyzing IgG anti-T.gondii we found an overall seroprevalence of 2.68%. In Brazil prevalences vary from 1.03% to 60%. Although in the present study, the seroprevalence per animal is considered low compared to those observed in other studies, we found out that of the 53 farms analyzed, 17 (34.69%) had one or more positive cattle. It is a considerable percentage, suggesting that the infection is well distributed through the Zona da Mata region. The results of the epidemiological investigation showed that the main risk factors of Toxoplasma gondii infection are related to animal management and to the definive host. There was a relationship between the number of seropositive cattle and the presence and number of resident cats, presence and number of stray cats, presence of cats walking freely, rat control by using cats and feed storage.ConclusionThese results may contribute to the development of preventive strategies in Brazil and other developing countries were extensive and semi-intensive cattle rearing systems are very widespread and the efforts to control this important zoonotic disease have attained little success.

show abstract

Section: Discussionsupporting

confidence: 48%

Section: Discussionmentioning

confidence: 99%

Seroprevalence and risk factors of toxoplasmosis in cattle from extensive and semi-intensive rearing systems at Zona da Mata, Minas Gerais state, Southern Brazil

et al. 2013

View full text Add to dashboard Cite

show abstract

“…This percentage was similar to the mean value obtained in other regions of Brazil. The reported seropositivity was 48.51% (MARANA et al, 1995) and 41.4% (DAGUER et al, 2004) in Paraná, 17.4% in Rio Grande do Sul (SANTOS, 2012), and 11.83% in Bahia (SPAGNOL et al, 2009). In Pará, Carmo et al (2017) observed that the prevalence of anti-T. gondii antibodies using IFA was 40.6% in beef cattle slaughtered for consumption in the metropolitan area of Belém.…”

Section: Discussionmentioning

confidence: 99%

“…In Brazil, studies conducted in Minas Gerais, Paraná, São Paulo, Bahia, and Rio Grande do Sul reported that the percentage of cattle with positive T. gondii antibodies varied from 1.03% to 49.17% COSTA, 1978;DAGUER et al, 2004;SPAGNOL et al, 2009;SANTOS, 2012). Using the IFA, Gondim et al (1999) reported that the positivity rate in Bahia was 3.85% and Fuji et al (2001) observed that the positivity rate in São Paulo was 3.2%.…”

Section: Introductionmentioning

confidence: 99%

Risk factors associated with the epidemiology of Toxoplasma gondii in cattle and buffaloes in the state of Pará, Brazil

Oliveira¹,

Casseb

Ramos

et al. 2018

SCA

View full text Add to dashboard Cite

Toxoplasma gondii is an obligate intracellular protozoan that parasitizes several hosts worldwide, of which cats are definitive hosts. The objective of this study is to evaluate the risk factors associated with the epidemiology of T. gondii in cattle and buffaloes in the state of Pará, Brazil. A total of 2,070 bovine samples (1,749 cattle and 321 buffaloes) were evaluated in 100 rural properties distributed in 51 municipalities from all mesoregions of the state. The evaluated risk factors were animal gender, type of farm, and number of cats in the properties. The serological prevalence of T. gondii was evaluated using the indirect enzyme immunoadsorption assay (iELISA). The samples with a sample/positive (S/P) ratio ? 0.5 were considered positive and analyzed using the indirect immunofluorescence assay (IFA). The samples diluted at 1:64 were considered positive. The chi-square test with a level of significance of 5% and the odds ratio (OR) with a confidence interval of 95% was applied.The data were analyzed using BioEstat software version 5.0.The prevalence of T. gondii in bovines was 35.79% and 45.12% in ELISA and IFAT, respectively. The prevalence was 34.48% and 44.14% in cattle and 42.99% and 50.47% in buffaloes using ELISA and IFA, respectively. The mesoregion with the highest prevalence of infection was Marajó Island, corresponding to 42.86% (129) and 50.5% (152) in ELISA and IFA, respectively. In buffaloes, the prevalence of T. gondiiusing ELISA was higher in males (p < 0.05) in the two age groups. In contrast, the prevalence of T. gondii using IFA was higher in males in the age group 13 to 24 months (p < 0.05). The type of farm did not affect the prevalence of T. gondii in cattle (p > 0.05). However, the presence of cats strongly affected the occurrence of infection in cattle. These results demonstrate the high levels of anti-T. gondii antibodies in cattle and buffaloes in Pará and this may be a public health problem. Furthermore, the presence of cats is a risk factor for infection with T. gondii in these species in Pará.

show abstract

“…More recently, Scarpelli et al (2009) performing bioassays revealed the presence of the parasite in many tissue and semen samples of animals infected with oocysts and tachyzoites on several experimental days between 7 and 84 suggesting the possibility of sexual transmission of T. gondii. In cattle the seroprevalence of antibodies anti-T. gondii ranges from 1.03 to 71% (Gondim et al 1999, Albuquerque et al 2005, Santos et al 2009, Spagnol et al 2009). Risk factors associated with bovine infection are scarce in the literature, but herd size and farming system has been identified by Klun et al (2006) and Schoonman et al (2009).…”

Section: Risk Factors Associated Withmentioning

confidence: 99%

Risk factors associated with Toxoplasma gondii infection in dairy cattle, state of Rio de Janeiro

et al. 2011

View full text Add to dashboard Cite

Toxoplasmosis is one of the most common parasitic zoonoses throughout the world. Infection in man and animals varies in different geographical areas influenced by many environmental conditions. Seroprevalence of Toxoplasma gondii infection in cattle in Brazil ranges from 1.03 to 71%. A cross-sectional survey was carried out in 58 out of 453 farms in the South Fluminense Paraiba Valley, State of Rio de Janeiro, Brazil. Over 3-year-old cattle (n=589) from dairy herds were selected for blood collection and detection of anti-T. gondii antibodies by indirect immunofluorescence reaction (IFA) with initial titration of 1:16; titers > 64 were considered positive. Univariate analysis of risk factors showed that cats in contact with cattle, cats in contact with drinking water, and number of cats were associated with T. gondii seroprevalence. Logistic regression revealed a two-fold increased risk for infection of cattle (p=0.0138) through larger number of cats (>3) compared with low numbers of cats (1-2) on the farm. In contrast, the presence of chickens was considered a protective factor (p=0.025).

show abstract

Prevalência de anticorpos anti-Toxoplasma gondii em bovinos abatidos em matadouros do estado da Bahia, Brasil

Cited by 15 publications

References 8 publications

Seroprevalence and risk factors of toxoplasmosis in cattle from extensive and semi-intensive rearing systems at Zona da Mata, Minas Gerais state, Southern Brazil

Seroprevalence and risk factors of toxoplasmosis in cattle from extensive and semi-intensive rearing systems at Zona da Mata, Minas Gerais state, Southern Brazil

Risk factors associated with the epidemiology of Toxoplasma gondii in cattle and buffaloes in the state of Pará, Brazil

Risk factors associated with Toxoplasma gondii infection in dairy cattle, state of Rio de Janeiro

Contact Info

Product

Resources

About