Effectiveness of Border Screening for Detecting Influenza in Arriving Airline Travelers
Effectiveness of Border Screening for Detecting Influenza in Arriving Airline Travelers
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DOI：
10.2105/ajph.2012.300761r
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发表时间：
2015-10-01
影响因子：
12.7
通讯作者：
Baker, Michael G.
中科院分区：
文献类型：
--
作者：
Priest, Patricia C.;Jennings, Lance C.;Baker, Michael G.
目标。我们测量了到达的国际航空旅客的症状和流感患病率，以及症状和体温筛查对识别流感的有效性。方法。这项横断面研究通过健康调查问卷、体温检测和呼吸道采样，收集了 2008 年冬季前往新西兰基督城国际机场的旅客的数据。 15 976 名旅客 (68%) 退回了表格。其中，17% 的人报告至少有 1 种流感症状，其中最常见的是流鼻涕或鼻塞 (10%) 和咳嗽 (8%)。从 3769 名旅行者身上获取了呼吸道样本。流感的估计患病率为 1.1%（有症状人群为 4%，无症状人群为 0.2%）。筛查标准的敏感性范围从“任何症状”的 84% 到 37.8 摄氏度或更高发烧的 3%。所有标准的阳性预测值都很低。结论。使用自我报告症状和体温检测进行边境筛查对于防止大流行性流感进入一个国家具有局限性。使用“任何症状”或咳嗽会导致许多未感染者受到调查，但一些感染者仍未被发现。如果使用发烧等更具体的标准，大多数感染者尽管经过筛查仍会进入该国。 （美国公共卫生杂志。2013 年；103：1412-1418。doi：10.2105/AJPH.2012.300761）
Objectives. We measured symptom and influenza prevalence, and the effectiveness of symptom and temperature screening for identifying influenza, in arriving international airline travelers.Methods. This cross-sectional study collected data from travelers to Christchurch International Airport, New Zealand, in winter 2008, via a health questionnaire, temperature testing, and respiratory sampling.Results. Forms were returned by 15 976 (68%) travelers. Of these, 17% reported at least 1 influenza symptom, with runny or blocked nose (10%) and cough (8%) most common. Respiratory specimens were obtained from 3769 travelers. Estimated prevalence of influenza was 1.1% (4% among symptomatic, 0.2% among asymptomatic). The sensitivity of screening criteria ranged from 84% for "any symptom" to 3% for a fever of 37.8 degrees C or greater. The positive predictive value was low for all criteria.Conclusions. Border screening using self-reported symptoms and temperature testing has limitations for preventing pandemic influenza from entering a country. Using "any symptom" or cough would lead to many uninfected people being investigated, yet some infected people would remain undetected. If more specific criteria such as fever were used, most infected people would enter the country despite screening. (Am J Public Health. 2013; 103: 1412-1418. doi:10.2105/AJPH.2012.300761)