Airport Personnel and Coronavirus Disease-2019: A Seroprevalence Study in Taiwan

Abstract

Introduction Many countries tried to lifted the travel restriction to revive their stagnant tourism-based economies. However, infection risks among airport personnel are incompletely understood. We therefore conducted this seroepidemiological study targeting airport personnel. Methods This cross-sectional study was conducted from October 20th, 2020 to February 28th, 2021 at the Taoyuan International Airport in Taiwan. All adults who worked at Taoyuan International Airport and were older than 20-years of age were eligible for participation. Serological tests were collected and study participants were asked to complete an online questionnaire which collected self reported data including demographic characteristics, occupation, exposure risk assessment, recent symptoms, and self-perceived risk of infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Continuous data were expressed with median and interquartile ranges; categorical data were expressed with counts and proportions. Results A total of 450 volunteers agreed to participate in the study. Most of the participants worked as ground crew (40.7%). Approximately 43.6% of participants did not feel any symptoms in the 3-months prior to serologic testing. Only 8 participants (1.8%) reported close contact with confirmed coronavirus disease-2019 (COVID-19) cases. Overall, none of the study participants had serologic confirmation of immunoglobulin G (IgG) antibodies against SARS-CoV-2. Conclusion The SARS-CoV-2 infection rate among airport personnel was low. This study demonstrates that a well-designed border control strategy may work and so that transmission of SARS-CoV-2 may be controllable.