Detection of airborne bacteria from patient spaces in tuberculosis hospital.
Airborne detection
Mycobacterium
nosocomial infection
Journal
International journal of mycobacteriology
ISSN: 2212-554X
Titre abrégé: Int J Mycobacteriol
Pays: India
ID NLM: 101615660
Informations de publication
Date de publication:
Historique:
entrez:
31
8
2020
pubmed:
31
8
2020
medline:
8
7
2021
Statut:
ppublish
Résumé
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. 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. 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. 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.
Sections du résumé
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.
Identifiants
pubmed: 32862163
pii: IntJMycobacteriol_2020_9_3_293_293540
doi: 10.4103/ijmy.ijmy_115_20
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
293-295Déclaration de conflit d'intérêts
None