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KMID : 1143420220150332344
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Public Health Weekly Report
2022 Volume.15 No. 33 p.2344 ~ p.2353
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The characteristics of domestic imported cases and the occurrence statues of global dengue outbreak
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Kan Hye-Su
Lee So-Dam
Shin Na-Ri
Hwang Kyung-Won
Nam Ho-Jin
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Abstract
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Global incidence of dengue fever has grown dramatically during the last two decades. In particular, as the incidence of
dengue fever increases rapidly around the world in 2022, the imported cases into our country is also increasing recently.
Based on the background, this report describes the characteristics of domestic imported cases and the current statues of
dengue outbreak in major overseas countries, in order to be on the alert of the increasing situation of dengue cases.
According to the national surveillance data, 17 of dengue fever cases were reported in this year (as of the 30th week of
2022), most of which were identified to have been imported from Vietnam or India. From analysis results for the last 6 years, a total of 666 patients with dengue fever were reported, with males in their 20s-50s accounting for the largest proportion at 64.7%. The cases were imported from a total of 31 countries, of which 98% were in Asia, including 187 in the Philippines (28.1%), 133 in Vietnam (20.0%), and 96 in Thailand (14.4%) et al. Over the world, the largest number of dengue cases reported in 2019, and then it seemingly decreased during the years 2020 and 2021. However, dengue outbreaks are occurring in many countries again in 2022, which representative examples are shown in Brazil, which increased by 195% compared to 2021, Vietnam by 188%, the Philippines by 90%, Thailand by 149% and Laos by 1,210%.
With the global dengue outbreaks, a rapid increase in the number of overseas travelers in Korea could accelerate the
importation of dengue cases from epidemic countries into our country. Hence, it is necessary to continuously monitor the
occurrence status of overseas dengue fever. In addition, overseas travelers visiting dengue-epidemic countries should
follow precautions to avoid mosquito bites, and if the symptoms develop after returning home, they should visit a medical
institution promptly for treatment
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KEYWORD
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Dengue Fever, Imported case, Dengue outbreak, Overseas travelers
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