Soroprevalência de aglutininas anti-Leptospira spp. em ovinos nas Mesorregiões Sudeste e Sudoeste do Estado Rio Grande do Sul, Brasil

Herrmann, Geder Paulo; Lage, Andrey Pereira; Moreira, É. C.; Haddad, João Paulo Amaral; Resende, José Renato de; Rodrigues, Rogério Oliveira; Leite, Rômulo Cerqueira

doi:10.1590/s0103-84782004000200017

Cited by 48 publications

(51 citation statements)

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“…This outcome supports the recommendation of combined use of MAT and PCR for a more efficient diagnosis of leptospirosis (OTAKA et al, 2013). The present study reported a lower prevalence of seroreactive animals than that observed in other Brazilian regions, such as 34.3% in the South (HERRMANN et al, 2004), 47.4% in the Southeast (MARTINS et al, 2012), and 33.3% in the North (AGUIAR et al, 2010). However, this prevalence was comparable to those reported in studies conducted in the semiarid region of northeast Brazil, which varied from 3.5% in Rio Grande do Norte (AZEVEDO et al, 2004) to 5.4% and 8.2% in Paraiba (ALVES et al, 2012;COSTA et al, 2016).…”

Section: Discussionsupporting

confidence: 90%

Leptospirosis in native mixed-breed sheep slaughtered in a semiarid region of Brazil

et al. 2017

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Section: Discussionsupporting

confidence: 90%

Leptospirosis in native mixed-breed sheep slaughtered in a semiarid region of Brazil

et al. 2017

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“…This is similar to the research by Herrmann et al (2004) in Rio Grande do Sul (RS) and Escócio et al (2010) in Sorocaba (SP), who detected 28.40% and 20.45%, also for the Hardjo serovar. However, they differed from the works of Marinho et al (2012), (Hebdomadis -18.10%) in the northwestern region of São Paulo (SP), Alves et al (2012), (Autumnalis -49.30%) in the semiarid region in Paraíba (PB), Carvalho et al (2011) (Autumnalis -29.40%) in the city of Teresina in Piauí (PI), Moraes et al (2012) (Autumnalis -66.67%) in Igarapé-Açu (PA).…”

Section: Discussionsupporting

confidence: 91%

“…Characteristic clinical symptoms are septicemia, hemorrhage and nephritis, followed by jaundice, hemoglobinuria, bloody mastitis, return to estrous, abortion in ewes and hemolytic anemia in lamb with death on the first week of life (HERRMANN et al, 2004). However, the most frequent form is the asymptomatic one.…”

Section: Introductionmentioning

confidence: 99%

Leptospirosis and brucellosis seroepidemiology in sheep and dogs from non-mechanized rural properties in the northwestern region in the state of Paraná

Oliveira

Zaniolo

Dias

et al. 2016

SCA

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Sheep breeding has been important in agribusiness, transforming the Brazilian productive scenario. However, it is still deficient due to the damages caused by infectious diseases. Leptospirosis is a severe disease with global distribution, caused by bacteria from the Leptospira genre affecting both humans and animals. The general infection is unapparent, or its clinical signs, when present, are similar to other infections. Brucellosis is an infectious disease caused by bacteria from the Brucella genre responsible for reproductive disorders in animals, especially ruminants. The purpose of this paper was to seroepidemiological study of Leptospira spp. and Brucella ovis in sheep and dogs from nonmechanized rural properties from the northwestern region in the state of Paraná, Brazil. In order to detect anti-Leptospira antibodies, microscopic agglutination (MAT) was performed. For anti-Brucella antibodies, the agar gel immunodiffusion assay (AGID) was performed. From the total 542 samples from sheep sera analyzed, 11.25% were considered reagent to Leptospira spp. and 18.26% to Brucella ovis. From the 36 dog samples, 25% were reagent to MAT and AGID. From the 32 properties analyzed, 75% were considered positive for leptospirosis and 56.25% for brucellosis. Antibodies against the most probable serovars were Hardjo (34.42%) and Butembo (44.44%) in sheep and dogs, respectively, and the variable exchange of animals among properties was associated to leptospiric infection (p=0.028) in sheep. Leptospirosis and brucellosis are present in the sheep herd and dogs in the rural properties studied, and such result is a warning of the zoonotic importance and the need to establish sanitary programs directed to these animal species. ResumoA ovinocultura tem se destacado no agronegócio, transformando o cenário produtivo do Brasil, porém ainda possui uma deficiência devido aos danos causados por doenças infecciosas. A leptospirose é uma doença grave de distribuição mundial causada por bactérias do gênero Leptospira que afeta o homem e os animais. A infecção geralmente é inapetente, ou os sinais clínicos, quando presentes, são similares aos de outras infecções. A brucelose é uma enfermidade infecciosa causada por bactérias do gênero Brucella responsáveis por desordens reprodutivas nos animais, especialmente nos ruminantes. O objetivo deste trabalho foi realizar um estudo soroepidemiológico de Leptospira spp. e Brucella ovis ovinos e cães de propriedades rurais não tecnificadas da região noroeste do estado do Paraná, Brasil. Para detecção de anticorpos anti-Leptospira foi realizada a soroaglutinação microscópica (SAM), e para anticorpos anti-Brucella, a prova de imunodifusão em gel de ágar (IDGA). Das 542 amostras de soro ovino analisadas, foram consideradas reagentes 11,25% para Leptospira spp. e 18,26% para Brucella ovis. Das 36 amostras de cães, 25% foram regentes a SAM e IDGA. Das 32 propriedades, 75% foram consideradas positivas para leptospirose e 56,25% para brucelose. Os anticorpos contra os sorovares mais prováveis for...

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“…Leptospirosis in small ruminants is usually asymptomatic, which ensures the permanence of carrier animals spreading the agent in flocks, and increases the risks of infection (Herrmann et al, 2004;Araújo Neto et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Epidemiologic analysis of Leptospira spp. infection among sheep in Pernambuco state, Brazil

et al. 2016

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This study aimed to analyze epidemiological aspects and spatial characteristics of Lesptospira spp. infection among sheep in Pernambuco state, Brazil. A total of 426 samples were collected from unvaccinated animals aged 1 year or older, and submitted to Microscopic Agglutination Test (MAT). To study the risk factors, a standardized investigative survey of sheep farmers, with objective questions, was conducted to establish the general characteristics of the farm property production, reproductive management, and health plan. From 426 samples analyzed, 83 (19.5%; CI 15.9 - 23.6%) were positive; among them, the most prevalent serovar was Autumnalis (32.4%). Significant differences were observed between gender (OR = 0.38; CI 0.14 - 0.99), production system (OR = 2.03; CI 1.07 - 3.84), types of herd (OR = 2.28; CI 1.39 - 3.72), absence of rodents to the grain storage (OR = 0.55; CI 0.34 - 0.91), and restriction to surface waters (OR = 0.60; CI 0.37 - 0.99). Leptospira spp. infection is disseminated in sheep herds, and multiple factors can influence its occurrence. Health education programs and worker training in prevention and control of leptospirosis and other infectious diseases may be useful to reduce infection rates and economic losses caused by this disease.

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Soroprevalência de aglutininas anti-Leptospira spp. em ovinos nas Mesorregiões Sudeste e Sudoeste do Estado Rio Grande do Sul, Brasil

Cited by 48 publications

References 6 publications

Leptospirosis in native mixed-breed sheep slaughtered in a semiarid region of Brazil

Leptospirosis in native mixed-breed sheep slaughtered in a semiarid region of Brazil

Leptospirosis and brucellosis seroepidemiology in sheep and dogs from non-mechanized rural properties in the northwestern region in the state of Paraná

Epidemiologic analysis of Leptospira spp. infection among sheep in Pernambuco state, Brazil

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