Prevalence of pathogenic<i>Leptospira</i>spp. in sheep in a sheep-only abattoir in New Zealand

Dorjee, Sithar; Heuer, C; Jackson, Ron; West, D.M.; Collins-Emerson, Julie; Midwinter, Anne C.; Ridler, Anne

doi:10.1080/00480169.2008.36829

Cited by 54 publications

(47 citation statements)

References 26 publications

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“…Dorjee et al (2008) observed high titers to the serovars Hardjo-bovis (33%) and Pomona (4%), also common in herbivores and rodents, respectively. Isolation was obtained from kidneys of 8/32 (22%, positive to Hardjo-bovis), 1/6 (17%, positive to Pomona) and 5/499 (1%, seronegative) sheep.…”

Section: Discussionmentioning

confidence: 99%

Frequency of Leptospira spp. in sheep from Brazilian slaughterhouses and its association with epidemiological variables

et al. 2012

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Leptospirosis is a worldwide anthropozoonosis that infects livestock, including sheep as the carriers to other animals and humans. The present study aimed to determine the prevalence of Leptospira spp. in sheep from two slaughterhouses in the state of São Paulo, Brazil and its association with epidemiological variables. Serum samples from 182 sheep were evaluated for Leptospira spp. antibodies by microscopic agglutination test (MAT). Results indicated 34/182 (18.68%; CI95% 13.70-24.98%) positive serum samples, mainly to the serovar Copenhageni (17/34; 50%; CI95% 33.99-66.01%). Bacterial growth in the Fletcher medium was detected for 13/34 (38.24%; CI95% 23.87-55.08%) animals, and confirmed by Polymerase Chain Reaction (PCR) and sequencing for only two kidney samples from two animals. Thus, treatment and vaccination of sheep, besides rodent control, can be useful to prevent the infection in the studied region since sheep are important Leptospira spp. carriers, and its transmission to slaughterhouse workers is mainly through the manipulation of visceral tissues.

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Section: Discussionmentioning

confidence: 99%

Frequency of Leptospira spp. in sheep from Brazilian slaughterhouses and its association with epidemiological variables

et al. 2012

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“…antibodies in ovines, with levels prevalence ranging between 5.7% and 6.1% (12,14,15). Seroepidemiological research on leptospirosis in ovines has been conducted and antibodies against Leptospira spp.…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence and risk factors of antibodies against Leptospira spp. in ovines from Uberlândia municipality, Minas Gerais state, Brazil

Salaberry¹,

Castro²,

Nassar³

et al. 2011

Braz. J. Microbiol.

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The objectives of the present study were to verify the seroprevalence of anti-Leptospira spp. antibodies, identify the most frequent serovars and the risk factors associated with the infection in Uberlândia, Minas Gerais, Brazil. A total of 334 ovines blood samples were collected in 12 farms from Uberlândia municipality to be evaluated by means the Microscopic Agglutination Test (MAT) against 22 serovars of Leptospira spp.and an epidemiologic questionnaire was applied for each farm in order to correlate with risk factors of leptospirosis: sex, age and breed as well as contact with cattle, contact with dogs and presence of rodents.The prevalence of seropositive to MAT was found in seventy four ovines (22.2%; CI 95% 17.6-26.4%), with titers ranging from 100 to 3200. The most frequent serovars identified were: Hardjo, Autumnalis, Hardjo and Wolffi association and Grippotyphosa. Statistically significant differences were found in males, pure breeds and presence of rodents (p<0.05). The prevalence of anti-Leptospira spp. antibodies found in the present study demonstrated that this bacterium occurs in ovines of Uberlândia municipality, MG, Brazil. The need for the adoption of efficient management for the control of rodents and infection in ovines in order to avoid leptospirosis in the local flocks and future transmission to humans.

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“…Essa eliminação prolongada pode constituir um problema zoonótico para todos que tiverem contato com o animal, como tratadores, produtores e trabalhadores de frigoríficos (COUSINS & ROBERTSON, 1986). Em um estudo realizado na Nova Zelândia com funcionários de matadouros, verificouse a contaminação por leptospirose em matadouros que só abatem ovinos e foi encontrada a presença de leptospiras viáveis nos rins e na urina dos animais abatidos (DORJEE et al, 2008). No Brasil, o isolamento de Leptospira sp.…”

Section: Zoonoseunclassified

Principais aspectos da infecção por Leptospira sp em ovinos

et al. 2010

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RESUMO Este trabalho tem como objetivo revisar as infecções por Leptospira sp em ovinos. São abordados os aspectos epidemiológicos, incluindo a ocorrência no Brasil e as formas de transmissão, os sinais clínicos e as lesões, o diagnóstico e as medidas de prevenção e controle.Palavras-chave: leptospirose, ovelha, zoonose. Brazil and mechanisms of transmission, clinical signs and lesions, diagnosis, prevention and control measures. ABSTRACT An updated review of Leptopspira sp infection in sheep is presented emphasizing some epidemiological aspects including the occurrence of the disease in

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Prevalence of pathogenicLeptospiraspp. in sheep in a sheep-only abattoir in New Zealand

Abstract: The study demonstrated the presence of a definite risk of occupational exposure of meat workers in a sheep-only slaughterhouse to the two most commonly diagnosed pathogenic Leptospira spp. serovars in New Zealand.

Cited by 54 publications

References 26 publications

Frequency of Leptospira spp. in sheep from Brazilian slaughterhouses and its association with epidemiological variables

Frequency of Leptospira spp. in sheep from Brazilian slaughterhouses and its association with epidemiological variables

Seroprevalence and risk factors of antibodies against Leptospira spp. in ovines from Uberlândia municipality, Minas Gerais state, Brazil

Principais aspectos da infecção por Leptospira sp em ovinos

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