Virus diffusion in isolation rooms

P. H. Kao, R. J. Yang

研究成果: Article同行評審

66 引文 斯高帕斯(Scopus)

摘要

In hospitals, the ventilation of isolation rooms operating under closed-door conditions is vital if the spread of viruses and infection is to be contained. Engineering simulation, which employs computational fluid dynamics, provides a convenient means of investigating airflow behaviour in isolation rooms for various ventilation arrangements. A cough model was constructed to permit the numerical simulation of virus diffusion inside an isolation room for different ventilation system configurations. An analysis of the region of droplet fallout and the dilution time of virus diffusion of coughed gas in the isolation room was also performed for each ventilation arrangement. The numerical results presented in this paper indicate that the parallel-directional airflow pattern is the most effective means of controlling flows containing virus droplets. Additionally, staggering the positions of the supply vents at the door end of the room relative to the exhaust vents on the wall behind the bed head provides effective infection control and containment. These results suggest that this particular ventilation arrangement enhances the safety of staff when performing medical treatments within isolation rooms.

原文English
頁(從 - 到)338-345
頁數8
期刊Journal of Hospital Infection
62
發行號3
DOIs
出版狀態Published - 2006 3月

All Science Journal Classification (ASJC) codes

  • 微生物學(醫學)
  • 傳染性疾病

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