Occupation as an associated risk factor for leptospirosis
Rattachement africain : us, br, ru, ca. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Introduction Although several studies have described occupation as an associated risk factor for leptospirosis, most have reported absolute case counts without normalization by the general population, service attendance, or notification capacity. Methods Accordingly, this study assessed the Brazilian National Surveillance System (SINAN) from 2007 to 2022, examining gathered leptospirosis cases analyzed by occupation as an associated risk factor within the working-age population. To ensure homogeneous attendance and notification capacity, we focused our analysis on the 100 largest Brazilian cities, utilizing censitary working occupation data per region as the denominator for normalization. Non-active populations (students and retirees) were excluded from the denominators to prevent bias dilution. Occupational groups were categorized into low, medium, and high risk for leptospirosis. Results Overall, the occupations with the highest absolute frequency included farmers (12.0%), construction workers (5.8%), and recycling material collectors (4.6%), with the work environment (75.5%) identified as the most common site of infection. The highest normalized occurrence of leptospirosis was reported in southern Brazil, and high-risk occupational groups showed significantly higher infection rates compared to lower-risk categories ( p < 0.001). Furthermore, professional groups with higher exposure loads presented greater frequencies of severe clinical outcomes, including renal failure, jaundice, and higher case fatality rates. The present study suggests occupation as an important predictor of leptospirosis, varying across regions according to local profe sional frequencies. In this scenario, the Brazilian national surveillance system serves as an effective indicator for public health actions and policies, enabling the dynamic monitoring of occupational exposure over time. Finally, occupation must systematically be analyzed as a predictor after normalizing for professional frequency, ensuring equitable access to healthcare assistance and standardized institutional notification.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Occupation as an associated risk factor for leptospirosis
- Date Crossref
- 17/08/2026
- Éditeur
- Frontiers Media SA
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Office of the Secretary of Health and Human Services pays non établi dans la noticeOrganisme public
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Universidade Federal da Integração Latino-Americana pays non établi dans la noticeUniversité ou école supérieure
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Latin American Institute pays non établi dans la noticeStructure de recherche
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University of British Columbia Interdisciplinary Graduate Studies pays non établi dans la noticeUniversité ou école supérieure
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Universidade Tecnológica Federal do Paraná pays non établi dans la noticeUniversité ou école supérieure
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Universidade Federal do Paraná pays non établi dans la noticeUniversité ou école supérieure
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Zoonosis Control Center pays non établi dans la noticeInstitution
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Center of Epidemiology pays non établi dans la noticeInstitution
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Federal University for Latin American Integration (UNILA) Latin-American Institute of Life and Nature Sciences pays non établi dans la noticeUniversité ou école supérieure
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Federal University of Paraná State (UFPR) Department of Veterinary Medicine pays non établi dans la noticeUniversité ou école supérieure
Office of the Secretary of Health and Human Services, Universidade Federal da Integração Latino-Americana et Latin American Institute, avec 7 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.