ArticleTropical animal health and production2020
High frequency of seropositive and carriers of Leptospira spp. in pigs in the semiarid region of northeastern Brazil.
Article in Tropical animal health and production, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed.
- Eco-Epidemiological Study of Seropositivity Against Rickettsia and Leptospira Agents in Rural Areas of Urabá, Colombia.Tropical medicine & international health : TM & IH · 2026Article
- Wild Boar (Animals : an open access journal from MDPI · 2026Article
- Revisiting genital leptospirosis in large animals: impacts on reproductive health, diagnostic challenges, and future directions.Journal of clinical microbiology · 2026Review
- Molecular and serological prevalence of Leptospira spp. among slaughtered cattle and associated risk factors in the Bahr El Ghazal region of South Sudan.BMC veterinary research · 2024Article
- Epidemiology ofMicroorganisms · 2023Article
- Global Seropositivity of Swine Leptospirosis: Systematic Review and Meta-Analysis.Tropical medicine and infectious disease · 2023Review
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Carrier animals are considered key in the transmission cycle of leptospirosis. Although investigations have been carried out on several species, the role of pigs in the epidemiology of the disease is still poorly studied in the semi-arid region. Thus, the objective of this study was to determine the presence of Leptospira spp. in the genitourinary tract of pigs intended for slaughter. Fifty pigs were used: adults and unvaccinated. Samples of the kidney, urine, and vaginal fluid were collected for the molecular detection of Leptospira spp. and blood samples for the serological test. The molecular test was performed using the polymerase chain reaction (PCR), and the serological test was performed with the microscopic agglutination test (MAT). Samples with DNA amplification were submitted to genetic sequencing. Twenty (40%) animals were found with anti-Leptospira spp. antibodies, and the majority of the reactions (50%) occurred for the serogroup Tarassovi. Leptospiral DNA was found in the tissue of 11 (22%) pigs. The gene from a urine sample was sequenced and showed similarity to L. borgpetersenii. The results evidenced a high rate of porcine carriers; therefore, they appear to be important sources of agent infection, being potential transmitters of the disease to other animal species and man.
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Registered trials
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