Determination and comparison of microbial loads in atmospheres of two hospitals in Izmir, Turkey
Journal Title: Annals of Agricultural and Environmental Medicine - Year 2013, Vol 20, Issue 1
Abstract
Introduction and Objectives. Nosocomial infections, also known as hospital-acquired infections, has become one of the most important health problems in health care units worldwide. The presented study aims to determine the average amount of microorganism loads and to show that the atmospheres of the two hospitals can be a potential source regarding nosocomial infections. The effect of surface and floor disinfection processes in the two hospitals and the antibiotic susceptibility of the bacterial isolates were also evaluated.Materials and Methods. Microorganisms were isolated from air samples collected from different areas (patient wards, corridors, operating theatres and postoperative units) of the two hospitals in Izmir. Sampling was conducted between December 2006 – March 2007.Results. During the 3-month sampling period, the average number of live microorganisms in the air samples collected from second-class environments in the hospital 1 and the hospital 2 was found to be 224.44 and 536.66 cfu/m[sup]3[/sup] , respectively. The average number of microorganisms in hospital 2 collected before the disinfection process was higher than those after the disinfection process. However, because of the closure of the air-conditioning system and the hepa filters after the disinfection process, this was reversed in hospital 1.In total, 54 and 42 isolates were obtained from hospital 1 and hospital 2, respectively. 49 isolates from hospital 1 and 35 isolates from hospital 2 were identified as [i]Staphylacoccus[/i] sp. The remaining isolates were identified as [i]Aerococcus[/i] sp. and [i]Enterococcus[/i] sp.[i] Pseudomonas[/i] sp. was not determined in the air samples of the two hospitals.Conclusions. It was detected that the microbial loads in the atmospheres of the two hospitals studied varied greatly depending on the number of people in the environment. As the results indicate, the total number of microorganisms in the atmospheres of operating theatres in both hospitals does not pose a threat according to the Air Microbe Index.
Authors and Affiliations
Nergüze Aydin Çakir, Füsun Bahriye Uçar, Alev Haliki Uztan, Cengiz Çorbaci, Onur Akpinar
Keywords
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