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A Study on Concentration, Identification, and Reduction of Airborne Microorganisms in the Military Working Dog Clinic

Safety and Health at Work 2020년 11권 4호 p.517 ~ 525
김민호, 백기욱, 박경국, 장제연, 이진홍,
소속 상세정보
김민호 ( Kim Min-Ho ) - Armed Forces Medical Research Institute Department of Work Environment Monitoring
백기욱 ( Baek Ki-Ook ) - Armed Forces Medical Research Institute Department of Work Environment Monitoring
박경국 ( Park Gyeong-Gook ) - Armed Forces Medical Research Institute Department of Research of Infectious Disease
장제연 ( Jang Je-Youn ) - Armed Forces Medical Research Institute Department of Veterinary Medicine
이진홍 ( Lee Jin-Hong ) - Chungnam National University Deptarment of Environmental Engineering

Abstract


Background: The study was planned to show the status of indoor microorganisms and the status of the reduction device in the military dog clinic.

Methods: Airborne microbes were analyzed according to the number of daily patient canines. For identification of bacteria, sampled bacteria was identified using VITEK®2 and molecular method. The status of indoor microorganisms according to the operation of the ventilation system was analyzed.

Results: Airborne bacteria and fungi concentrations were 1000.6 ± 800.7 CFU/m3 and 324.7 ± 245.8 CFU/m3. In the analysis using automated identification system, based on fluorescence biochemical test, VITEK®2, mainly human pathogenic bacteria were identified. The three most frequently isolated genera were Kocuria (26.6%), Staphylococcus (24.48%), and Granulicatella (12.7%). The results analyzed by molecular method were detected in the order of Kocuria (22.6%), followed by Macrococcus (18.1%), Glutamicibacter (11.1%), and so on. When the ventilation system was operated appropriately, the airborne bacteria and fungi level were significantly decreased.

Conclusion: Airborne bacteria in the clinic tend to increase with the number of canines. Human pathogenic bacteria were mainly detected in VITEK®2, and relatively various bacteria were detected in molecular analysis. A decrease in the level of bacteria and fungi was observed with proper operation of the ventilation system.

키워드

Airborne bacteria; Animal hospital; Ventilation; Veterinary clinics

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