Department of Epidemiology, School of Public Health, Seoul National University, Republic of Korea.
Department of Epidemiology, School of Public Health, Seoul National University, Republic of Korea; Department of Obstetrics and Gynecology, CHA University Medical School, Seoul, Republic of Korea.
Travel Med Infect Dis. 2017 Sep;19:22-27. doi: 10.1016/j.tmaid.2017.09.003. Epub 2017 Sep 15.
International travel has an important role in transmission of emerging infectious diseases. We described the imported infectious diseases in Korea from 2003 to 2012, and to analyze association of travels with the change in the incidences.
We used National Notifiable Disease Surveillance System to investigate the incidence of salmonellosis, shigellosis, malaria, and dengue. Data from Korea Tourism Organization was used to describe the inbound and outbound travelers by their age group, gender, and purpose of travel. We assessed association between international travel and the incidence of the infectious diseases, and seasonal variability.
Among 1849 imported cases, dengue comprised the largest number with 631 cases. The proportion of imported cases among total cases gradually increased from 4.1% in 2003 to 30.3% in 2012 (P < 0.001). There was a positive correlation between the number of travelers and the number of imported cases of shigellosis, dengue (P < 0.001), but not for malaria. Seasonal variability was observed for importation of salmonellosis, shigellosis and dengue fever (P = 0.005).
International travel was associated with the incidence of imported infectious diseases in Korea. Pre-travel consultation for international travelers planned to visit endemic area should be recommended strongly.
国际旅行在新发传染病的传播中起着重要作用。我们描述了 2003 年至 2012 年韩国输入性传染病，并分析了旅行与发病率变化的关系。
我们使用国家法定传染病监测系统调查了沙门氏菌病、志贺氏菌病、疟疾和登革热的发病率。使用韩国旅游组织的数据，按年龄组、性别和旅行目的描述入境和出境旅行者。我们评估了国际旅行与传染病发病率和季节性变化之间的关联。
在 1849 例输入性病例中，登革热病例最多，有 631 例。输入性病例在总病例中的比例从 2003 年的 4.1%逐渐上升到 2012 年的 30.3%（P<0.001）。志贺氏菌病和登革热的旅行者人数与输入性病例数呈正相关（P<0.001），但疟疾则没有。沙门氏菌病、志贺氏菌病和登革热的输入存在季节性变化（P=0.005）。
国际旅行与韩国输入性传染病的发病率有关。应强烈建议计划前往流行地区的国际旅行者进行旅行前咨询。
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