Human Movement in an Airplane Cabin Can Affect Airborne Disease Transmission


Airborne transmission of respiratory infectious disease in an indoor environment (such as an airplane cabin, conference room, hospital, isolated room and inpatient ward) may cause outbreaks of infectious diseases, which may lead to many infection cases and significantly influences on the public health. Research by Han, et al. (2014) investigates the influence of human movement on the airborne transmission of respiratory infectious diseases in an airplane cabin by using an accurate human model in numerical simulation and comparing the influences of different human movement behaviors on disease transmission.

The Eulerian-Lagrangian approach was adopted to simulate the dispersion and deposition of the expiratory aerosols. The dose-response model is used to assess the infection risks of the occupants. The likelihood analysis is performed as a hypothesis test on the input parameters and different human movement pattern assumptions. An in-flight SARS outbreak case is used for investigation. A moving person with different moving speeds is simulated to represent the movement behaviors. A digital human model was used to represent the detailed profile of the occupants, which was obtained by scanning a real thermal manikin using the 3D laser scanning system.

The analysis results indicate that human movement can strengthen the downward transport of the aerosols, significantly reduce the overall deposition and removal rate of the suspended aerosols and increase the average infection risk in the cabin. The likelihood estimation result shows that the risk assessment results better fit the outcome of the outbreak case when the movements of the seated passengers are considered. The intake fraction of the moving person is significantly higher than most of the seated passengers.

The researchers conclude that infection risk distribution in the airplane cabin highly depends on the movement behaviors of the passengers and the index patient. The walking activities of the crew members and the seated passengers can significantly increase their personal infection risks. Taking the influence of the movement of the seated passengers and the index patient into consideration is necessary and important. For future studies, investigations on the behaviors characteristics of the passengers during flight will be useful and helpful for infection control. Their research was published in BMC Infectious Diseases.

Reference: Han Z, To GNS, Fu SC, Chao CYH, Weng W and Huang Q. Effect of human movement on airborne disease transmission in an airplane cabin: study using numerical modeling and quantitative risk analysis. BMC Infectious Diseases 2014, 14:434  doi:10.1186/1471-2334-14-434

Related Videos
Jill Holdsworth, MS, CIC, FAPIC, CRCST, NREMT, CHL
Jill Holdsworth, MS, CIC, FAPIC, CRCSR, NREMT, CHL, and Katie Belski, BSHCA, CRCST, CHL, CIS
Baby visiting a pediatric facility  (Adobe Stock 448959249 by
Antimicrobial Resistance (Adobe Stock unknown)
Anne Meneghetti, MD, speaking with Infection Control Today
Patient Safety: Infection Control Today's Trending Topic for March
Infection Control Today® (ICT®) talks with John Kimsey, vice president of processing optimization and customer success for Steris.
Picture at AORN’s International Surgical Conference & Expo 2024
Infection Control Today and Contagion are collaborating for Rare Disease Month.
Related Content