2023-2024年臺中國際機場執行中港澳入境有症狀旅客檢疫專案成果及經驗分享

Quarantine Implementation for Symptomatic Travelers from China, Hong Kong and Macau at Taichung International Airport November 2023–February 2024

2023年10月隨著中國新冠肺炎封鎖、限制活動及「動態清零」等措施解除，該國北方受季節性之影響，兒童呼吸道病例增加，導致流感、新冠肺炎、呼吸道融合病毒肺炎及黴漿菌肺炎等疾病傳播。世界衛生組織發現中國多地兒童醫院出現群聚性肺炎病例，促使我國於同年11月26日起於4處國際機場啟動中港澳入境有症狀旅客定點監測專案。
臺中國際機場於監測期間共有120位符合條件的入境旅客。其中男性55%，女性45%；年齡以20–39歲最多（40%）；居住地以臺中市為主（79.2%）；本國籍則佔60%。15位配合採檢者檢出10例陽性，包含新冠病毒、流感病毒、肺炎黴漿菌等多種病原體。
此現象研判與「免疫負債」理論相符，即因新冠防疫措施降低了感染機會，解除限制後可能致疾病反彈。建議出國前應接種疫苗，並於高風險區戴口罩、勤洗手。返國後若有不適應立即就醫並告知旅遊史，保障健康。

In October 2023, respiratory cases among children in northern China increased significantly due to the lifting of lockdowns, activity restrictions, and ''dynamic zero-COVID'' policies, as well as seasonal patterns in infectious diseases. In November, the World Health Organization detected clusters of pneumonia cases of unknown origin in children's hospitals across China. In response, the Taiwan Centers for Disease Control initiated sentinel surveillance by monitoring symptomatic travelers from China, Hong Kong, and Macau at four international airports.
A total of 120 eligible incoming travelers were screened at Taichung International Airport from November 26, 2023, to February 16, 2024. Fifteen were tested at contracted hospitals, and ten tested positive for SARS-CoV-2, influenza virus, or Mycoplasma pneumoniae.
This trend aligned with the ''immunity debt'' theory, which suggested that COVID-19 prevention measures reduced exposure to common pathogens, leading to a rebound of infectious diseases once restrictions were eased.
We recommend that travelers receive influenza and COVID-19 vaccinations before traveling abroad, wear masks in areas with a high transmission rate, and practice good hand hygiene. In addition, travelers should promptly seek medical attention if symptoms develop and inform healthcare providers of recent travel history to facilitate early diagnosis and effective infection control.