Assessment of bioaerosols in tuberculosis high-risk areas of health care facilities in central Thailand

Sornboot, Jarmmaree; Aekplakorn, Wichai; Ramasoota, Pongrama; Bualert, Surat; Tumwasorn, Somying; Jiamjarasrangsi, Wiroj

doi:10.1515/abm-2019-0002

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…Furthermore, the type of air conditioner used was considered crucial as central air conditioners proved to be more effective than non-centrally sited systems such as window, or single-split types [ 35 , 36 ]. Notably, one study identified that, compared with hybrid ventilation, the concentration of indoor bioaerosols was positively correlated with the type of ventilation system used (e.g., central air conditioners, P < 0.05) [ 23 ].…”

Section: Resultsmentioning

confidence: 99%

Effects of air-conditioning systems in the public areas of hospitals: A scoping review

Dai

et al. 2021

Epidemiol. Infect.

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Almost all hospitals are equipped with air-conditioning systems to provide a comfortable environment for patients and staff. However, the accumulation of dust and moisture within these systems increases the risk of transmission of microbes and have on occasion been associated with outbreaks of infection. Nevertheless, the impact of air-conditioning on the transmission of microorganisms leading to infection remains largely uncertain. We conducted a scoping review to screen systematically the evidence for such an association in the face of the coronavirus disease 2019 epidemic. PubMed, Embase and Web of Science databases were explored for relevant studies addressing microbial contamination of the air, their transmission and association with infectious diseases. The review process yielded 21 publications, 17 of which were cross-sectional studies, three were cohort studies and one case−control study. Our analysis showed that, compared with naturally ventilated areas, microbial loads were significantly lower in air-conditioned areas, but the incidence of infections increased if not properly managed. The use of high-efficiency particulate air (HEPA) filtration not only decreased transmission of airborne bioaerosols and various microorganisms, but also reduced the risk of infections. By contrast, contaminated air-conditioning systems in hospital rooms were associated with a higher risk of patient infection. Cleaning and maintenance of such systems to recommended standards should be performed regularly and where appropriate, the installation of HEPA filters can effectively mitigate microbial contamination in the public areas of hospitals.

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Section: Resultsmentioning

confidence: 99%

Effects of air-conditioning systems in the public areas of hospitals: A scoping review

Dai

et al. 2021

Epidemiol. Infect.

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“…The contribution by Sornboot et al in the present issue of Asian Biomedicine describes the situation of bioaerosol concentrations in 7 large health care facilities [7]. The authors have documented that it is imperative to improve indoor air quality.…”

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confidence: 99%

Indoor air quality in health care facilities: a call for a concerted multidisciplinary effort

2018

Asian Biomedicine

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Fungal contamination assessment in healthcare environments—A bibliographic review

Pimenta

Gomes

Dias

et al. 2022

Viruses, Bacteria and Fungi in the Built Environment

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In Healthcare environments fungal presence depend on the medical activities performed, number and types of patients, cleaning frequency and procedures and the type of ventilation systems. The aim of this review article was to identify different methodologies applied to assess fungal contamination in Healthcare environments, as well as to describe the most reported fungi in these environments. This study was based on a systematic search for information and data that have been published in free access sources during the period of 1 st January 2000 to 31 st December 2020. PRISMA methodology was applied to identify and select studies referring to Healthcare environments where the fungal assessment was performed. The most common Healthcare environments assessed were hospitals (26 out of 56) and the most used sampling methods were active (27 articles). Passive methods were exclusively used in 8 papers, and the combined use of both methods was verified in 21 papers. Concerning analytical procedures, the exclusive use of morphological identification was the most frequent approach (40 out of 56). Aspergillus sp., Cladosporium sp. and Penicillium sp. were the predominant genera found indoors (24 out of 56). There is scientific evidence of fungal contamination present in Healthcare environments. Thus, in order to have an accurate and reliable risk characterization, the combined use of active and passive sampling methods and the use of culture based-methods and molecular tools are of upmost importance.

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Assessment of bioaerosols in tuberculosis high-risk areas of health care facilities in central Thailand

Cited by 3 publications

References 17 publications

Effects of air-conditioning systems in the public areas of hospitals: A scoping review

Effects of air-conditioning systems in the public areas of hospitals: A scoping review

Indoor air quality in health care facilities: a call for a concerted multidisciplinary effort

Fungal contamination assessment in healthcare environments—A bibliographic review

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