Inter-zonal migration of airborne infectious particles in isolation wards by human movement

W. T. Leung, G. N. Sze-To, Christopher Y.H. Chao, Joseph K.C. Kwan, Samuel C.T. Yu, C. K. Wong

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Experiments were conducted in the isolation facilities of an infectious diseases hospital to study the inter-zonal migration of airborne infectious particles by human movement. To generate simulated airborne infectious particles, artificial saliva solution with benign E. coli bacteria was aerosolized. Rod-shape Escherichia coli (E. coli) bacterium was used in this study to represent the rod-shape Tuberculosis (TB) bacillus, which is an airborne transmissible pathogen. The solution was aerosolized in the cubicle, anteroom or corridor under door closed, opening and human movement scenarios. In each scenario, E. coli-laden aerosols in air were collected at the adjacent zones. The portion of airborne infectious particles transported from the cubicle to the anteroom then to the corridor during human movement was found to be relatively small, but was still measurable.

Original languageEnglish
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages937-942
Number of pages6
Publication statusPublished - 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: 5 Jun 201110 Jun 2011

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume2

Conference

Conference12th International Conference on Indoor Air Quality and Climate 2011
Country/TerritoryUnited States
CityAustin, TX
Period5/06/1110/06/11

Keywords

  • Containment effectiveness
  • E. coli
  • Hospital environment
  • Migration ratio
  • Negative pressure

ASJC Scopus subject areas

  • Pollution

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