|
Presence of Legionella and Its Related Factors in Air Condition Systems and Cooling Units in Kerman University of Medical Sciences
|
P Molazade *   , N Khanjani , M.R Rahimi , A.R Molazadeh , A Rahimi |
| Kerman University of Medical Sciences |
|
|
Abstract: (5135 Views) |
Background & objectives: Legionella is a hard to grow gram negative bacterum responsible for Legionnaires' disease which is a severe form of pneumonia and can be fatal. These bacteria can grow on air conditions and cooling systems and may causes epidemics. Due to resistance to chlorine and other disinfectants this study aimed to identify and control these bacteria in air conditions and cooling systems.
Methods: For this cross-sectional study, samples were collected from air conditions and cooling systems of Kerman University of Medical Sciences. A total number of 310 samples were taken from water tanks of coolers, cooling and air condition systems of hospitals, clinics,education and student ceters, offices, and dormitores. Samples were transferred to the laboratory and concentrated prior to washing with acidic buffer. They were inoculated on to BCYE, BMPA and MWY media. Samples were incubated in 2.5% of CO2 and water and plates were examined within two weeks. Results were reported as percent and average. Comparisons were done with chi-square test, ANOVA and t-test. Data were analyzed using SPSS version 20.
Results:Of the 310 samples, %22.26 was infected with Legionella bacteria, of which %12.9 was related to water cooling systems. Infection with Legionella bacteria was significantly high in health centers and water coolers. The most prevalent bacteria was Legionella pneumophila.
Conclusion:There are infection with this bacterium in some of the cooling systems in Kerman University of Medical Sciences and it is nessessary to consider control strategies. |
|
| Keywords: Legionella, Cooling and Ventilation Systems, Kerman |
|
|
Full-Text [PDF 132 kb]
(1768 Downloads)
|
Type of Study: Research |
Subject:
Special
Received: 2017/09/23 | Accepted: 2017/09/23 | Published: 2017/09/23
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
