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https://www.arca.fiocruz.br/handle/icict/47654
POVERTY, SANITATION, AND LEPTOSPIRA TRANSMISSION PATHWAYS IN RESIDENTS FROM FOUR BRAZILIAN SLUMS
Author
Affilliation
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil / Swedish University of Agricultural Sciences. Umeå, Sweden.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil / Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Lancaster University. Lancaster Medical School. Centre for Health Informatics, Computing, and Statistics. Lancaster, United Kingdom.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Universidade Federal da Bahia. Faculdade de Medicina da Bahia. Salvador, BA, Brasil / Yale School of Public Health. Department of Epidemiology of Microbial Diseases. New Haven, USA.
Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Yale School of Public Health. Department of Epidemiology of Microbial Diseases. New Haven, USA.
Lancaster University. Lancaster Medical School. Centre for Health Informatics, Computing, and Statistics. Lancaster, United Kingdom.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
University of Liverpool. Institute of Integrative Biology. Department of Evolution, Ecology and Behaviour. Liverpool, United Kingdom.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil / Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Yale School of Public Health. Department of Epidemiology of Microbial Diseases. New Haven, USA.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil / Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Lancaster University. Lancaster Medical School. Centre for Health Informatics, Computing, and Statistics. Lancaster, United Kingdom.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Universidade Federal da Bahia. Faculdade de Medicina da Bahia. Salvador, BA, Brasil / Yale School of Public Health. Department of Epidemiology of Microbial Diseases. New Haven, USA.
Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Yale School of Public Health. Department of Epidemiology of Microbial Diseases. New Haven, USA.
Lancaster University. Lancaster Medical School. Centre for Health Informatics, Computing, and Statistics. Lancaster, United Kingdom.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil.
University of Liverpool. Institute of Integrative Biology. Department of Evolution, Ecology and Behaviour. Liverpool, United Kingdom.
Universidade Federal da Bahia. Instituto de Saúde Coletiva. Salvador, BA, Brasil / Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Yale School of Public Health. Department of Epidemiology of Microbial Diseases. New Haven, USA.
Abstract
Residents of urban slums suffer from a high burden of zoonotic diseases due to individual, socioeconomic, and environmental factors. We conducted a cross-sectional sero-survey in four urban slums in Salvador, Brazil, to characterize how poverty and sanitation contribute to the transmission of rat-borne leptospirosis. Sero-prevalence in the 1,318 participants ranged between 10.0 and 13.3%. We found that contact with environmental sources of contamination, rather than presence of rat reservoirs, is what leads to higher risk for residents living in areas with inadequate sanitation. Further, poorer residents may be exposed away from the household, and ongoing governmental interventions were not associated with lower transmission risk. Residents at higher risk were aware of their vulnerability, and their efforts improved the physical environment near their household, but did not reduce their infection chances. This study highlights the importance of understanding the socioeconomic and environmental determinants of risk, which ought to guide intervention efforts.
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