Cross-sectional study of Leptospira spp. in commercial pig farms in the state of Goiás, Brazil

Petri, Fernando Antônio Moreira; Sonálio, Karina; Almeida, Henrique Meiroz de Souza; Mechler-Dreibi, Marina Lopes; Galdeano, José Vanderlei Burim; Mathias, Luís Antônio; Oliveira, Luís Guilherme de

doi:10.1007/s11250-020-02457-6

Trop Anim Health Prod

2020

DOI: 10.1007/s11250-020-02457-6

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Cross-sectional study of Leptospira spp. in commercial pig farms in the state of Goiás, Brazil

Fernando Antônio Moreira Petri

Karina Sonálio

Henrique Meiroz de Souza Almeida

et al.

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Cited by 4 publications

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“…The aetiological structure of leptospirosis is constantly changing and it has some differences in each country (Bertasio et al 2020;Petri et al 2020;Poudel et al 2020). Therefore, an effective specific prevention (vaccination) and a serological diagnosis of leptospirosis require knowledge of the prevalence and aetiological structure of the disease, namely the list of Leptospira serovars that cause animal disease in each region (country) (Adler 2015;Felix et al 2020).…”

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confidence: 99%

Serological prevalence of Leptospira serovars among pigs in Ukraine during the period of 2001-2019

Ukhovskyi¹,

Pyskun²,

Korniienko³

et al. 2022

Vet. Med. - Czech

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Leptospirosis is a widespread infection among pigs throughout the world. In most cases in Ukraine, only the microscopic agglutination test (MAT) is used for the diagnosis of leptospirosis in animals. In general, during the period of 2001–2019, 2 381 163 samples of blood sera from swine were tested in our country and 85 338 positive reactions were received, which is 3.58% [binomial confidence intervals (BCI), 3.56–3.61%]. It was established that the serovars copenhageni – 33.91% (BCI, 33.59–34.23%), bratislava – 14.14% (BCI, 13.90–14.37%), pomona – 8.58% (BCI, 8.39–8.77%), and tarassovi – 7.12% (BCI, 6.95–7.30%) play a leading role in the aetiological structure of swine leptospirosis. A large number of positive reactions to several serovars was observed – 29.78% (BCI, 29.47–30.09%) of the total number of positive cases. In addition, the article presents data according to a retrospective analysis of the eight serovars circulating among pigs in Ukraine. Thus, during the nineteen year period, there was a decrease in the number of positive reactions to bratislava, pomona, and tarassovi and an increase in the number of positive reactions to copenhageni, polonica, and kabura. Mapping Ukraine’s territory for leptospirosis among pigs was carried out. This allows one to identify zones with a risk of leptospirosis infections among swine. The maps show that the highest incidence rates were identified in the eastern and central parts of Ukraine.

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confidence: 99%

Serological prevalence of Leptospira serovars among pigs in Ukraine during the period of 2001-2019

Ukhovskyi¹,

Pyskun²,

Korniienko³

et al. 2022

Vet. Med. - Czech

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Evaluation of protective efficacy, serological responses, and cytokine modulation induced by polyvalent Leptospira vaccines in hamsters

de Oliveira,

Maia,

Santos

et al. 2024

Comparative Immunology, Microbiology and Infectious Diseases

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Leptospirosis and the Environment: A Review and Future Directions

Bradley,

Lockaby

2023

Pathogens

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Leptospirosis is a zoonotic disease of global importance with significant morbidity and mortality. However, the disease is frequently overlooked and underdiagnosed, leading to uncertainty of the true scale and severity of the disease. A neglected tropical disease, leptospirosis disproportionately impacts disadvantaged socioeconomic communities most vulnerable to outbreaks of zoonotic disease, due to contact with infectious animals and contaminated soils and waters. With growing evidence that Leptospira survives, persists, and reproduces in the environment, this paper reviews the current understanding of the pathogen in the environment and highlights the unknowns that are most important for future study. Through a systematic Boolean review of the literature, our study finds that detailed field-based study of Leptospira prevalence, survival, and transmission in natural waters and soils is lacking from the current literature. This review identified a strong need for assessment of physical characteristics and biogeochemical processes that support long-term viability of Leptospira in the environment followed by epidemiological assessment of the transmission and movement of the same strains of Leptospira in the present wildlife and livestock as the first steps in improving our understanding of the environmental stage of the leptospirosis transmission cycle.

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Cross-sectional study of Leptospira spp. in commercial pig farms in the state of Goiás, Brazil

Cited by 4 publications

References 38 publications

Serological prevalence of Leptospira serovars among pigs in Ukraine during the period of 2001-2019

Serological prevalence of Leptospira serovars among pigs in Ukraine during the period of 2001-2019

Evaluation of protective efficacy, serological responses, and cytokine modulation induced by polyvalent Leptospira vaccines in hamsters

Leptospirosis and the Environment: A Review and Future Directions

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