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Year : 2020  |  Volume : 9  |  Issue : 3  |  Page : 293-295

Detection of airborne bacteria from patient spaces in tuberculosis hospital

Clinical Research Center, Masan National Tuberculosis Hospital, Changwon-Si, Gyeongsangnamdo, South Korea

Correspondence Address:
Sungweon Ryoo
Clinical Research Center, Masan National Tuberculosis Hospital, Changwon, Gyeongsangnamdo, 51755
South Korea
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijmy.ijmy_115_20

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Background: The spread of nosocomial bacterial infection greatly threatens public health and the impact of nosocomial infection worsens if highly pathogenic bacteria, Mycobacterium tuberculosis as an instance, involves. In this study, we have investigated the presence of airborne M. tuberculosis in a specialized tuberculosis hospital. Methods: The study sites selected were waiting room I, II, and ward VI patient lounge, Masan National Tuberculosis Hospital, where the modern ventilation system is on the operation for opportunistic infection prevention. The air samples were collected from the different sites three times for 1 day, and after air collection, air sampled disposable filter membrane was incubated for 4 weeks on nine Middlebrook 7H11 agar plates. Results: Our data showed that out of nine incubated 7H11 plate agars, four plates showed bacterial growth and these grown bacterial colonies were isolated and identified. Among bacterial species identified, there was a colony of Mycobacterium mageritense, one of nontuberculous Mycobacteria. Although there was no M. tuberculosis, the cause of tuberculous disease and transmitted through the nosocomial infection, all pathogens detected were known to be associated with nosocomial infection. Conclusions: Hospitals dealing with infectious diseases should always be wary that ventilation system does not guarantee safety from airborne pathogen exposure hence should continuously monitor the presence of other hospital-associated infection causing pathogenic microorganisms.

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