Animal Leptospirosis

Ellis, William

doi:10.1007/978-3-662-45059-8_6

Cited by 379 publications

(667 citation statements)

References 157 publications

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“…Since sheep breeding is predominantly developed for families' income generation and subsistence, infectious diseases are an important factor contributing to low productivity (MARTINS et al, 2012). Among these, leptospirosis is relevant as it is widely disseminated and causes abortions, stillbirths or birth of weak offspring, as well as a decrease in milk production (HIGINO & AZEVEDO, 2014;ELLIS, 2015).…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2017

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Section: Introductionmentioning

confidence: 99%

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

et al. 2017

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“…However, inadequate sanitization often results in reproductive loss, creating the need to replenish the animal stock (ESCÓCIO, 2009). In this context, leptospirosis is a cause for concern as it is widely disseminated and can lead to abortion, birth of weak and premature offspring, and decreased milk production (ELLIS, 2015).…”

Section: Introductionmentioning

confidence: 99%

Influence of storage on the chemical composition of Stylosanthes hays for equine feeding

et al. 2016

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The aim of this survey was to determine the frequency of anti-Leptospira spp. antibodies in goats and sheep slaughtered in different slaughterhouses in the State of Paraiba, in the semi-arid region of Northeastern Brazil. Blood samples were collected from 500 goats and 500 sheep randomly selected. To verify the presence of anti-Leptospira spp. antibodies the microscopic agglutination test (MAT), using 24 serovars as antigens, was used. From the 1,000 animals analyzed, 82 (8.2%; 95% CI = 7.0%-10.5%) were sero-reactive being 26/500 (5.2%; 95% CI = 3.5%-7.5%) in goats and 56/500 (11.2%; 95% CI = 8.7%-14.2%) in sheep. The most frequent serovars were Hardjobovis (14.6%) and Autumnalis (13.4%). In goats, the most frequent serovar was the Hardjobovis, and in sheep the Ballum, with frequencies of 19.2% and 17.9%, respectively. There was a significant difference in the frequency of positive animals among slaughterhouses, both for goats (p = 0.035) and for sheep (p = 0.004), with the county of Alhandra presenting the highest frequency of seropositive animals for both species. It is concluded that sheep and goats from the semiarid region of the Northeastern Brazil may have become adapted to the serovars Hardjobovis e Autumnalis, as well as wild rodents may be involved in the transmission of the disease. It is possible that the climatic conditions influenced in the transmissibility of the leptospirosis, especially in the Mata Paraibana mesoregion, however it was not considered as being sufficient to justify the low frequency of seropositive animals. In this way, it is possible to suggest the hypothesis that the rusticity of the small ruminants in the studied region contributed to the low sero-reactivity verified. Key words: Adaptability. Goats. Leptospirosis. Sheep. Rusticity. ResumoO objetivo deste estudo foi determinar a frequência de anticorpos anti-Leptospira spp. em caprinos e ovinos abatidos em diferentes matadouros no Estado da Paraíba, região semiárida do Nordeste brasileiro. Foi coletado sangue de 500 caprinos e 500 ovinos aleatoriamente selecionados. Para verificar a presença de anticorpos anti-Leptospira spp. empregou-se o teste soroaglutinação microscópica (SAM), utilizando-se 24 sorovares como antígenos. Dos 1.000 animais analisados 82 (8,2%; IC 95%= 7,0%-10,5%) foram sororreagentes, sendo 26/500 (5,2%; IC 95% =3,5%-7,5%) em caprinos e 56/500 (11,2%; IC 95% 8,7%-14,2%) em ovinos. Os sorovares mais frequentes foram Hardjobovis (14,6%) e Autumnalis (13,4%). Na espécie caprina, o sorovar mais frequente foi o Hardjobovis, e na espécie ovina o Ballum, com frequências de 19,2% e 17,9%, respectivamente. Houve diferença significativa na frequência de positivos entre os matadouros, tanto para caprinos (p = 0,035) quanto para ovinos (p = 0,004), com o município de Alhandra apresentando a maior frequência de soropositivos para ambas as espécies. Concluiu-se que ovinos e caprinos da região semiárida do Nordeste podem estar adaptados aos sorovares Hardjobovis e Autumnalis, bem como roedores silvestres estarem envolv...

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“…Rodents, cattle, buffaloes, horses, sheep, goats, pigs and dogs are the most common reservoirs. [3][4][5] The disease is transmitted mainly by direct or indirect contact with water sources or soil contaminated with urine of infected animals. 6 Major life threatening complications of leptospirosis reported in recent outbreaks in Sri Lanka which include renal failure 7 , haemorrhage into most organs and tissues and multi organ failure.…”

Section: Introductionmentioning

confidence: 99%

Utility of a modified silver staining technique for detection of Leptospira

Gunasekara

Sumaiha

Damayanthi

et al. 2017

Sri Lankan J Infec Dis

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Background: Leptospira are spiral thin and highly motile pathogenic bacteria that are best visualized by dark ground microscopy. Although these bacteria are not stained by the Gram's stain, the Fontana stain, which is a silver impregnation staining method, can be used successfully for light microscopy. It is important to investigate the usefulness of Fontana stain method for direct demonstration of Leptospirain human body fluids.

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Animal Leptospirosis

Cited by 379 publications

References 157 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

Influence of storage on the chemical composition of Stylosanthes hays for equine feeding

Utility of a modified silver staining technique for detection of Leptospira

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