Soroprevalência De Leptospirose Em Fêmeas Bovinas Em Idade Reprodutiva No Estado Da Bahia

Oliveira, Flávia Carolina Souza de; Azevêdo, Sérgio Santos de; Pinheiro, Sônia Regina; Viegas, S. A. R. A.; Batista, C.S.A.; Coelho, Cidéli de Paula; Moraes, Zenaide Maria; Souza, Gisele Oliveira de; Gonçales, Amane Paldês; Almeida, Cayo; Vasconcellos, Sílvio Arruda

doi:10.1590/1808-1657v76p5392009

Cited by 7 publications

References 11 publications

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Seroprevalence and risk factors for leptospirosis in cattle, sheep, and goats at consorted rearing from the State of Piauí, northeastern Brazil

Campos

Miranda

Rodrigues

et al. 2017

Trop Anim Health Prod

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Leptospirosis is an endemic disease in Latin America, caused by pathogenic bacteria of the genus Leptospira. It is considered one of the main causes responsible for the negative economic impact on global livestock by causing reproductive problems. The research aimed to determine the prevalence of leptospirosis in cattle, sheep, and goats at consorted rearing in the micro-region of Teresina, Piauí state, northeastern Brazil, as well as to identify prevalent serovars and risk factors associated with seroprevalence. Serum samples were analyzed in 336 sheep, 292 goats, and 253 cattle using microscopic agglutination test (MAT). Overall, 378 samples were positive to MAT, with seroprevalence of 42.9%. The prevalences in cattle, sheep, and goats were 50.5, 40.5, and 34.6%, respectively. All herds presented at least one seropositive animal; the Hardjo/Wolffi serovar association was the most common in cattle and Icterohaemorrhagiae in goats and sheep. Beef production (OR = 4.9), cattle herd over 35 animals (OR = 4.0), feeding on pasture (OR = 6.4), weir and/or stream as water source (OR = 2.1), and no veterinary services (OR = 2.9) were risk factors for cattle infection. For sheep, intensive management system (OR = 5.3), suspended slatted facilities (OR = 2.2), more than 20 sheep in reproductive age (OR = 1.9), and absence of deworming (OR = 3.5) were the risk factors, while for goats, the identified risk factors were sheep herd over 52 animals (OR = 1.9) and no veterinary services (OR = 1.8). We conclude that the infection was spreading in consorted herds in this region. Thus, it would be interesting and important to conduct educative activities to farmers on the economic impacts of this disease and the need of preventive and control strategies mainly focused on sanitary measures and animal handling.

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Seroprevalence and risk factors for leptospirosis in cattle, sheep, and goats at consorted rearing from the State of Piauí, northeastern Brazil

Campos

Miranda

Rodrigues

et al. 2017

Trop Anim Health Prod

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Complete diagnosis of leptospirosis in tropical reproductive cattle

Lemos

Paixão-Marques

Alves-Martin

et al. 2018

Preprint

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21Leptospirosis is a worlwide zoonosis of great impact in both animal and public 22 health. Bovine leptospirosis is commonly manifested by reproductive disorders, such 23 as abortion, stillbirth and infertility; causing depletion of the economic balance of 24 livestock farms, along with representing a health risk problem for farm workers. In view 25 of these consequences, we aimed to evaluate the sanitary status of tropical cattle and 26 their role as reproductive disseminators of leptospirosis. We analyzed blood and 27 . CC-BY 4.0 International license It is made available under a (which was not peer-reviewed) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. isolates Guaricura and Nupezo, respectively; furthermore, five animals were positive by 33 PCR in blood and/or culture samples and three semen samples were positive by PCR 34 (one of them also seropositive). These results highlight the coexistence of both 35 disease's stages (acute and chronic) in the same environment, thus alert for venereal 36 dissemination of leptospirosis, aggravating their sanitary condition and fomenting 37 economic losses. We, authors, recommend the adoption of prophylactic measures, 38 such as systemic vaccination, treatment of animals and improvement of hygienic-39 sanitary conditions. 40

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Antibodies against Leptospira spp. in bovine serum samples from several Brazilian states analyzed in the period from 2007 to 2015

Furquim

Santos

Mathias

2021

Arq. Bras. Med. Vet. Zootec.

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Bovine leptospirosis assumes great economic importance since it affects several production aspects. Therefore, knowledge about the occurrence and distribution of this disease is fundamental to adopt the correct prevention measures. The present study aimed to evaluate the frequency of anti-Leptospira spp. antibodies in 24,483 bovine serum samples received between 2007 to 2015 from 21 Brazilian states. Of these, 8,643 (35.3%) were reagents in the microscopic agglutination test to one or more serovars of Leptospira spp. The most frequent serovars were Wolffi (61.47%), Tarassovi (9.62%) and Pomona (7.20%). Hardjo serovar presented a prevalence of 6.27%. Among the 21 states analyzed, the State of Pernambuco had the highest frequency with 88.24% and the State of São Paulo was the origin of the largest number of analyzed samples (13,838), with a frequency of 31.54% of reagents. The results demonstrate a high exposure to several serovars of Leptospira spp. in bovine species in Brazilian states, showing the importance of adopting prophylactic measures in order to reduce the risk of infection in this specie.

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Soroprevalência De Leptospirose Em Fêmeas Bovinas Em Idade Reprodutiva No Estado Da Bahia

Cited by 7 publications

References 11 publications

Seroprevalence and risk factors for leptospirosis in cattle, sheep, and goats at consorted rearing from the State of Piauí, northeastern Brazil

Seroprevalence and risk factors for leptospirosis in cattle, sheep, and goats at consorted rearing from the State of Piauí, northeastern Brazil

Complete diagnosis of leptospirosis in tropical reproductive cattle

Antibodies against Leptospira spp. in bovine serum samples from several Brazilian states analyzed in the period from 2007 to 2015

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