Fomite Transmission in Airports Based on Real Human Touch Behaviors

Author:

Zhuang Linan1,Ding Yuqing2,Zhou Linlin3,Liu Ronghan3,Ding Jiajie3,Wang Rui3,Huang Weiwei2,Shang Shujia1,Qian Hua2ORCID,Zhang Nan1

Affiliation:

1. Beijing Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, China

2. School of Energy and Environment, Southeast University, Nanjing 211189, China

3. Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 211189, China

Abstract

The public areas of airports are often bustling, raising the risk of infectious diseases spreading through fomites. We recorded 21.3 h of video at three airports, focusing on nine common areas (e.g., boarding and check-in areas) where people touch surfaces. We analyzed 25,925 touches to create a model for how microbes spread from surfaces to humans through touch. The airport mask-wearing rate is high (96.1% in non-restaurant areas), but it is lower (22%) in restaurants. Passengers touch their mucous membranes more often (10.3 times/hour) in restaurants compared to other areas (1.6 times/hour on average). Wearing a mask can significantly reduce the risk of obtaining a virus through direct contact with hands and mucous membranes. If everyone in non-restaurant areas wore masks, the viral intake fraction could be reduced by up to 97.4% compared to not wearing masks. People touch public surfaces the most in self-service check-in areas, at a rate of 473.5 times per hour. Disinfecting public surfaces or hands twice per hour could reduce the viral intake fraction in each area by 27.7% or 15.4%, respectively. The findings of this study provide valuable data support and a scientific foundation for implementing interventions aimed at mitigating fomite transmission within airport settings.

Funder

National Natural Science Foundation of China

Publisher

MDPI AG

Subject

Building and Construction,Civil and Structural Engineering,Architecture

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