1. Management of Microbiological Contamination of the Water Network of a Newly Built Hospital Pavilion
- Author
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Osvalda De Giglio, Giusy Diella, Marco Lopuzzo, Francesco Triggiano, Carla Calia, Chrysovalentinos Pousis, Fabrizio Fasano, Giuseppe Calabrese, Vincenza Rafaschieri, Lucia Federica Carpagnano, Matilde Carlucci, Loreto Gesualdo, Maria Luisa Ricci, Maria Scaturro, Maria Cristina Rota, Lucia Bonadonna, Luca Lucentini, and Maria Teresa Montagna
- Subjects
Legionella ,legionellosis ,water networks ,P. aeruginosa ,E. coli ,enterococci ,Medicine - Abstract
The good installation, as well as commissioning plan, of a water network is a crucial step in reducing the risk of waterborne diseases. The aim of this study was to monitor the microbiological quality of water from a newly built pavilion before it commenced operation. Overall, 91 water samples were tested for coliforms, Escherichia coli, enterococci, Pseudomonas aeruginosa and Legionella at three different times: T0 (without any water treatment), T1 (after treatment with hydrogen peroxide and silver ions at initial concentration of 20 mg/L and after flushing of water for 20 min/day for seven successive days) and T2 (15 days later). Coliforms were detected in 47.3% of samples at T0, 36.3% at T1 and 4.4% at T2. E. coli was isolated in 4.4% of the samples only at T1, while enterococci appeared in 12.1% of the samples at T1 and in 2.2% at T2. P. aeruginosa was isolated in 50.5% of the samples at T0, 29.7% at T1 and 1.1% at T2. Legionella pneumophila serogroup 8 was isolated in 80.2% of the samples at T0, 36.3% at T1 and 2.2% at T2. Our results confirmed the need for a water safety plan in new hospital pavilions to prevent the risk of waterborne diseases.
- Published
- 2021
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