Leptospira spp. infection in sheep herds in southeast Brazil

Barbante, Priscila; Shimabukuro, Fabio Hiroto; Langoni, Hélio; Richini-Pereira, Virgínia Bodelão; Lucheis, Simone Baldini

doi:10.1186/1678-9199-20-20

Cited by 8 publications

(11 citation statements)

References 12 publications

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“…Humans become infected with Leptospira by direct or indirect contact with infected animals and their urine or by contact with contaminated water and soil [ 1 ]. A number of animals can be infected with Leptospira , i.e., swine [ 2 ], sheep [ 4 , 5 ], cows [ 1 ], rats, dogs [ 1 , 6 ], and horses [ 7 ]. Leptospira infection does not only occur in domestic animals but also in wild and peri-domestic animals including deer [ 8 ] and other mammals, birds, and reptiles [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

High Seroprevalence ofLeptospiraExposure in Meat Workers in Northern Mexico: A Case-Control Study

et al. 2016

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BackgroundThe seroepidemiology of Leptospira infection in workers occupationally exposed to raw meat has been poorly studied. This work aimed to determine the association between Leptospira exposure and the occupation of meat worker, and to determine the seroprevalence association with socio-demographic, work, clinical and behavioral characteristics of the meat workers studied.MethodsWe performed a case-control study in 124 meat workers and 124 age- and gender-matched control subjects in Durango City, Mexico. Sera of cases and controls were analyzed for anti-Leptospira IgG antibodies using a commercially available enzyme immunoassay. Data of meat workers were obtained with the aid of a questionnaire. The association of Leptospira exposure with the characteristics of meat workers was analyzed by bivariate and multivariate analyses.ResultsAnti-Leptospira IgG antibodies were found in 22 (17.7%) of 124 meat workers and in eight (6.5%) of 124 controls (OR = 3.12; 95% CI: 1.33 - 7.33; P = 0.006). Seroprevalence of Leptospira infection was similar between male butchers (17.6%) and female butchers (18.2%) (P = 1.00). Multivariate analysis of socio-demographic, work and behavioral variables showed that Leptospira exposure was associated with duration in the activity, rural residence, and consumption of snake meat and unwashed raw fruits.ConclusionsThis is the first case-control study of the association of Leptospira exposure with the occupation of meat worker. Results indicate that meat workers represent a risk group for Leptospira exposure. Risk factors for Leptospira exposure found in this study may help in the design of optimal preventive measures against Leptospira infection.

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Section: Introductionmentioning

confidence: 99%

High Seroprevalence ofLeptospiraExposure in Meat Workers in Northern Mexico: A Case-Control Study

et al. 2016

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“…PCR appeared as more sensitive compared to the MAT, as others report (Bomfim and Koury, 2006;Lilenbaum et al, 2008;Barbante et al, 2014), but there is also a possibility that the group of serovars used in the MAT for testing in the UK is not suitable for Greece. Therefore, some MAT negative animals could be positive in serovars not included in the testing panel.…”

Section: Discussionmentioning

confidence: 83%

“…One such method is isolation, but due to its time limitations and the time required for examining a second serum sample, various PCR versions have been established for quickly confirming clinical leptospirosis (Gravenkamp et al, 1993;Bomfim and Koury, 2006;Lilenbaum et al, 2008;Lilenbaum et al, 2009). However, comparisons between PCR, culture and serologic results are not always satisfactory (Faber et al, 2000;Soto et al, 2006;Barbante et al, 2014), if infecting serovars are not included in the MAT testing. In such cases, PCR could be positive, but the MAT negative.…”

Section: Discussionmentioning

confidence: 99%

Laboratory investigation of adult small ruminant Leptospirosis, a neglected infection in Greece: problems and recommendations

Bisias¹,

Kritas

Μπιλλινησ)³

et al. 2018

J Hellenic Vet Med Soc

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ABSTRACT. Leptospirosis is in Greece a neglected infection. Small ruminants and specifically sheep are accidental hosts ofLeptospira spp, but they could also be disseminators of pathogenic serovars. Thus, the objective was to investigate leptospirosis of adult small ruminants coming from areas in Southern Greece, where accidental evidence had showed that leptospirosis could be an important infection for man and animals. For this purpose, blood and kidney samples were collected at slaughter from adult females. Collected samples were examined with a commercial serological screening kit, the microagglutination test ( MAT), histology and PCR. One hundred ten serum and 110 tissue samples were collected. Of the examined serum samples 55 (50%) were suspect for leptospirosis in the screening kit and 28 (25.45%) were MAT positive. Of the tissue samples 38 (34.5%) were PCR positive and 30 (27.2%) showed various degrees of microscopic kidney lesions. The serovars identified by the MAT were Tarassovi (10 animals), Autumnalis (8 animals), Zanoni (4 animals), Hebdomadis and Javanica (2 each), Bratislava and Hardjio prajitno (one each). The conclusion is that small ruminants and specifically sheep (98 animals) are disseminators of pathogenic Leptospira spp. serovars in areas where they predominate and climatic factors favor the survival of the pathogen.

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“…O predomínio da reatividade ao sorovar Castellonis concorda com citações de outros autores 27 e demonstra que também foi um dos mais frequentes em ovinos 5,16,28,29 .…”

Section: Discussionunclassified

Investigação sorológica, molecular e anatomopatológica para leptospirose em ovinos (Ovis aries) procedentes de um biotério de criação

Carneiro¹,

Bahia²,

Pereira

et al. 2015

Rev Pan-Amaz Saude

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Leptospira spp. infection in sheep herds in southeast Brazil

Cited by 8 publications

References 12 publications

High Seroprevalence ofLeptospiraExposure in Meat Workers in Northern Mexico: A Case-Control Study

High Seroprevalence ofLeptospiraExposure in Meat Workers in Northern Mexico: A Case-Control Study

Laboratory investigation of adult small ruminant Leptospirosis, a neglected infection in Greece: problems and recommendations

Investigação sorológica, molecular e anatomopatológica para leptospirose em ovinos (Ovis aries) procedentes de um biotério de criação

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