I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, 20246, Germany.
Department of Clinical Infectious Diseases, Leibniz Lung Center, Research Center Borstel, Parkallee 35, Borstel, 23845, Germany.
BMC Infect Dis. 2024 Oct 5;24(1):1107. doi: 10.1186/s12879-024-10008-9.
Influenza is the most common vaccine-preventable infection among travelers, affecting approximately one percent of those travelling to subtropical and tropical destinations.
We analysed demographic, travel-related and clinical information from travelers diagnosed with influenza at our travel clinic between January 2015 and March 2020 and influenza-negative controls.
We included 68 travelers diagnosed with influenza and 207 controls. In total, 22.1% of influenza patients (n = 15) were older than 60 years and/or had comorbidities for which annual influenza vaccination is recommended, but only one had received an influenza vaccine. Patients with respiratory and musculoskeletal symptoms who presented during the German influenza season had the highest risk proportion of positive tests (54%, n = 25/46). Overall, three (4.4%) influenza patients were hospitalised, two (2.9%) received antiviral treatment, and eight (11.8%) received antibiotic therapy.
Influenza occurs throughout the year in international travelers and can cause significant morbidity. Travelers with febrile illness should be tested for influenza, especially if they have respiratory or musculoskeletal symptoms, present during the local influenza season, or have travelled to South-East Asia. Influenza vaccination coverage among international travelers needs to be improved among high-risk individuals.
流感是旅行者中最常见的可预防感染，约影响 1%前往亚热带和热带目的地的旅行者。
我们分析了 2015 年 1 月至 2020 年 3 月在我们旅行诊所被诊断为流感的旅行者和流感阴性对照者的人口统计学、旅行相关和临床信息。
我们纳入了 68 名被诊断为流感的旅行者和 207 名对照者。总的来说，22.1%（n=15）的流感患者年龄大于 60 岁和/或有推荐进行年度流感疫苗接种的合并症，但只有 1 人接种了流感疫苗。在德国流感季节出现呼吸道和肌肉骨骼症状的患者具有最高阳性检测风险比例（54%，n=46/25）。总体而言，有 3 例（4.4%）流感患者住院，2 例（2.9%）接受了抗病毒治疗，8 例（11.8%）接受了抗生素治疗。
流感在国际旅行者中全年都有发生，可导致严重的发病率。有发热症状的旅行者应进行流感检测，尤其是在当地流感季节出现呼吸道或肌肉骨骼症状、或前往东南亚旅行的旅行者。应提高高危人群中国际旅行者的流感疫苗接种率。
