Journal
JOURNAL OF WATER AND HEALTH
Volume 8, Issue 4, Pages 703-711Publisher
IWA PUBLISHING
DOI: 10.2166/wh.2010.140
Keywords
Aeromonas; public health; sanitary surveillance; wastewater
Categories
Funding
- Programa de Saneamento Ambiental PROSAB/Finep/CNPq (Brazil)
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Aeromonas are widely distributed in the aquatic environment, and are considered to be emerging organisms that can produce a series of virulence factors. The present study was carried out in a sanitary sewage stabilization pond treatment system, located in Lins, State of Sao Paulo, Brazil. Most probable number was applied for estimation of the genus Aeromonas. Colony isolation was carried out on blood agar ampicillin and confirmed by biochemical characterization. Aeromonas species were isolated in 72.4% of influent samples, and in 55.2 and 48.3% of effluent from anaerobic and facultative lagoons, respectively. Thirteen Aeromonas species were isolated, representing most of the recognized species of these organisms. Even though it was possible to observe a tendency of decrease, total elimination of these organisms from the studied system was not achieved. Understanding of the pathogenic organism's dynamics in wastewater treatment systems with a reuse potential is especially important because of the risk it represents.
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