Preprint Article Version 1 This version is not peer-reviewed

Detection of Pathogenic Leptospira in Ornamental Water Fountains from Urban Sites in Cali, Colombia

Version 1 : Received: 10 May 2018 / Approved: 10 May 2018 / Online: 10 May 2018 (09:24:18 CEST)

How to cite: Escandón-Vargas, K.; Bustamante-Rengifo, J.A.; Astudillo-Hernández, M. Detection of Pathogenic Leptospira in Ornamental Water Fountains from Urban Sites in Cali, Colombia. Preprints 2018, 2018050162 (doi: 10.20944/preprints201805.0162.v1). Escandón-Vargas, K.; Bustamante-Rengifo, J.A.; Astudillo-Hernández, M. Detection of Pathogenic Leptospira in Ornamental Water Fountains from Urban Sites in Cali, Colombia. Preprints 2018, 2018050162 (doi: 10.20944/preprints201805.0162.v1).

Abstract

Leptospirosis is a disease endemic to both rural and urban areas of tropical countries and resource-poor communities, favored by socioeconomic and climatic determinants. The survival and persistence of pathogenic leptospires in water are key to the epidemiology of the disease. Little information is available on the actual presence of Leptospira spp. in water sources of urban habitats. A study was conducted to detect the presence of pathogenic Leptospira in open-air ornamental water fountains in Cali, Colombia. Twenty-seven water fountains were tested for pathogenic Leptospira using EMJH culture and a multiplex PCR assay targeting the secY and the flaB genes. The presence of pathogenic Leptospira was confirmed in 12 (44%) ornamental water fountains. The isolation frequency of pathogenic Leptospira was highest (67%) for those water fountains located in parks, plazas, building exteriors, and sidewalks. We conclude that ornamental water fountains might be urban reservoirs of pathogenic Leptospira, thereby posing a health hazard to humans. These fountains are frequently outdoors and are exposed to rodents, stray animals, and rainfall. Regular cleaning and disinfection of water in fountains prevent people from exposure, not only to pathogenic Leptospira, but also to other waterborne pathogens.

Subject Areas

Leptospira; ornamental water; water; waterborne pathogen; microbial contamination; environmental exposure; Colombia

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