Occurrence of antibodies against Leptospira spp. in horses of the urban area of Londrina, Paraná, Brazil

Hashimoto, Vanessa Yumi; Gonçalves, Daniela Dib; Silva, Francielle Gibson da; Oliveira, Renata Cristina Gobbi de; Alves, Lucimara Aparecida; Reichmann, Peter; Müller, E.; Freitas, Júlio César de

doi:10.1590/s0036-46652007000500010

Cited by 32 publications

(48 citation statements)

References 11 publications

(7 reference statements)

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“…1999); (Faber et al 2000); (Donahue and Williams. 2000) Grippotyphosa, Icterohaemorrhagiae Europe (Donahue et al 1995); (Dwyer et al 1995); (Wollanke et al 2001) Bratislava, Icterohaemorrhagiae, Sejroe Sweden (Baverud et al 2009) Bratislava Mongolia (Odontsetseg et al 2005) Icterohaemorrhagiae, Copenhageni, Bratislava Brazil (Hashimoto et al 2007); (Braga et al 2011); (Coiro et al 2012); (Hamond et al 2012); (Pinna et al 2012); (Hamond et al 2013); (Pinna et al 2014) Icterohaemorrhagiae, Bratislava, Pomona Italy (Ebani et al 2012) Sejroe, Bratislava Korea (Jung et al 2010) Copenhageni, Bratislava Netherlands (Houwers et al 2011) Bratislava, Pomona Icterohaemorrhagiae Croatia Grippotyphosa, Sejroe Nothern Poland (Arent and KedzierskaMieszkowska. 2013) Copenhageni South-eastern Australia (Dickeson and Love.…”

Section: Common Serovars Affecting Horses and Their Geographical Locamentioning

confidence: 99%

A study of leptospirosis in South African horses and associated risk factors

Simbizi

Saulez²,

Potts

et al. 2016

Preventive Veterinary Medicine

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between potential risk factors and both seropositive horses to the predominant serovar Bratislava and to Leptospira spp were statistically evaluated using univariable analysis and multivariable logistic regression models.Adult horses admitted to each equine hospital and horses seen on ambulatory service for various purposes were included in the study. Severely-ill, chronically infected, and horses with underlying immunosuppressive conditions were excluded from sampling, to control for potential bias.A total of 663 horse sera were collected and tested against a panel of 24 leptospiral serovars using the microscopic agglutination test. The most predominant serovars in Gauteng were The apparent prevalence to one or more serovars of Leptospira spp at a serum dilution of 1:100 in Gauteng, KwaZulu-Natal and Western Cape Provinces was 49%; 37% and 32% respectively. The true prevalence was calculated for each province taking into account the clustering effect during the sampling and was found to be between 24-74% in Gauteng; 26-39% in the Western Cape and 20-54% in KwaZulu-Natal.iv Nooitgedacht (South African horse breed) horses were found to be at greater risk of being seropositive to both serovar Bratislava (OR=5.08) and Leptospira spp (OR=6.3). Similarly, horses residing on properties with forestry in the vicinity were found to be at greater risk of being seropositive to both serovar Bratislava (OR=9.3) and Leptospira spp (OR=5.2). This study has shown that a high proportion of horses in South Africa are exposed to a wide range of serovars, inferring a complex epidemiology. It also describes for the first time new serovars of Leptospira in South African horses that have not previously been reported.v

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Section: Common Serovars Affecting Horses and Their Geographical Locamentioning

confidence: 99%

A study of leptospirosis in South African horses and associated risk factors

Simbizi

Saulez²,

Potts

et al. 2016

Preventive Veterinary Medicine

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“…Nevertheless, this serovar is uncommon and we only found one case, while Linhares et al (2005), who studied the prevalence of serovars of Leptospira interrogans in 182 serum samples from horses of the Goiânia micro-region using the MAT method, did not find any positive results for this serovar. The fact that the Icterohaemorrhagiae serovar was also only identified on a single property in the present study is more controversial, as this serovar has been found in many studies and is regarded as one of the most prevalent ones in the country (Langoni et al, 2004;Gomes et al, 2007;Hashimoto et al, 2007;Jorge et al, 2011;Coiro et al, 2012). The findings with respect to Grippotyphosa may indicate a specific enzootic area for this serovar in the Bananeiras and Borborema counties.…”

Section: Discussionmentioning

confidence: 45%

Spatial characterization of Leptospira spp. infection in equids from the Brejo Paraibano micro-region in Brazil

et al. 2014

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Abstract. The present study, the first to spatially characterize Leptospira spp. infection among equids in the Brejo Paraibano micro-region of the Paraiba state in the northeast of Brazil, investigated 257 animals in 26 farms properties. Serum samples from 204 horses, 46 mules and seven donkeys were serologically diagnosed using the microscopic agglutination test (MAT). The distribution of Leptospira spp. was studied by employing specific antigens from 24 different Leptospira serovars. All farms were georeferenced and their distribution visualised on a map of the Brejo Paraibano micro-region. In addition, rainfall data were obtained from the same year, in which the sampling was performed. Among the 20 farms found to harbour animals with leptospirosis, 14 (70%) exhibited low prevalence, five (25%) medium prevalence and one (5%), high prevalence. Certain areas had a higher density of infected farms and required intervention to control the infection. Many serovars were widely distributed, while others were more common in particular areas. There was no significant association between the prevalence of Leptospira spp. infection and rainfall.

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“…The most frequent serovar was Icterohaemorrhagiae. Hashimoto et al (2007) studied 320 equines that were used to pull wagons in Londrina, Paraná, between 1996 and 2005, using MAT to investigate 22 serovars, and obtained positive results from 66.88%. Icterohaemorrhagiae was the most likely serovar.…”

Section: Discussionmentioning

confidence: 99%

“…seem to be the main risk factors for infection (ROBERTS, 1969;FAINE, 1982;HASHIMOTO et al, 2007). Kouam et al (2010) studied serum from 773 equines in four regions of Greece, using ELISA to investigate the presence of anti-IgG for Toxoplasma, Leishmania, Echinococcus and Trichinella.…”

Section: Discussionmentioning

confidence: 99%

Zoonosis of public health interest in slaughtered Brazilian equidae

et al. 2012

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The objective of this study was to investigate the presence of Trichinella spp. in the musculature and anti-Toxoplasma gondii and anti-Leptospira spp. antibodies in the serum of equidae slaughtered at two abattoir-cold storage facilities licensed by the brazilian Federal Inspection Service. Masseter muscle and blood samples were collected from 398 animals of both sexes and different ages originating from six different Brazilian states. The serum samples were subjected to the Indirect Fluorescence Antibody Test for T. gondii (IFAT ≥ 64) obtaining 46 (11.6%) samples reagent. For Leptospira spp. antibody quantification, the serum samples were tested by microscopic seroagglutination test (MAT ≥ 100), and 123 (30.9%) reagent results were obtained. It was possible to identify the most likely infecting serovar in 95 samples (77.2%): Hardjo (26.3%) and Autumnalis (12.6%) were the ones most prevalent. None of the 398 masseter muscle samples analyzed revealed any presence of Trichinella spp. larvae. The slaughtered equidae that were investigated were probably exposed to the etiologic agents of toxoplasmosis and leptospirosis, but they did not present Trichinella infection. Key words: Slaughterhouse, equidae, Toxoplasma gondii, Leptospira, Trichinella ResumoO objetivo deste estudo foi investigar a presença de Trichinella spp. na musculatura e anticorpos anti-Toxoplasma gondii e anti-Leptospira spp. em soro de equídeos abatidos em dois matadourosfrigoríficos com serviço de Inspeção Federal. Amostras de músculo masséter e sangue foram coletados de 398 animais de ambos os sexos e várias idades, provenientes de seis diferentes estados brasileiros. As amostras de soro foram submetidas à Reação de Imunofluorescência Indireta para T. gondii (IFI ≥ 64) obtendo 46 (11,6%) amostras reagentes. Para Leptospira spp. as amostras de soro foram testadas pelo teste de soroaglutinação microscópica (MAT ≥ 100) e 123 (30,9%) amostras foram reagentes. Foi possível identificar o sorovar mais provável em 95 amostras (77,2%) sendo Hardjo (26,3%) e Autumnalis (12,6%) os mais encontrados. Nenhuma das 398 amostras de músculo masséter analisados revelou qualquer presença de larvas de Trichinella spp. Os equídeos destinados ao abate que foram investigados, provavelmente foram expostos aos agentes da toxoplasmose e leptospirose, porém não apresentaram infecção por Trichinella.

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Occurrence of antibodies against Leptospira spp. in horses of the urban area of Londrina, Paraná, Brazil

Cited by 32 publications

References 11 publications

A study of leptospirosis in South African horses and associated risk factors

A study of leptospirosis in South African horses and associated risk factors

Spatial characterization of Leptospira spp. infection in equids from the Brejo Paraibano micro-region in Brazil

Zoonosis of public health interest in slaughtered Brazilian equidae

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