2023年臺南市某市場本土登革熱群聚事件

Investigation of an Indigenous Dengue Fever Outbreak in a Market, Tainan, Taiwan, 2019

2023年臺南市出現自2015年來最大規模本土登革熱疫情，確診病例數累計21，532例。疫情期間出現數起不同感染地之群聚事件，其中非都會型行政區麻豆區，短期內迅速累計多名病例，至該疫情監測截止共有118例本土確定病例。經過疫情調查發現，確診個案的感染來源可能皆與麻豆區某市場相關，市場人流龐大複雜且多數無名冊可追蹤，易使疫情擴散至其他區域。因此地方政府跨單位迅速動員及衛生福利部疾病管制署等單位合力，積極進行擴大疫調、衛教民眾、孳生源清除、社區動員、化學防治等相關防治措施，使該群聚疫情獲得控制。期藉由此分享，可作為登革熱特殊場域—市場防治工作之參考。

In 2023, Tainan City experienced the largest local dengue fever outbreak since 2015, with a total of 21,532 confirmed cases. Throughout the epidemic, clusters emerged from different regions. Among them, the Madou District, a non-metropolitan administrative area, saw a rapid increase in case numbers over a short period, reaching 118 confirmed locally acquired cases by the end of the outbreak. An epidemiological investigation revealed that the source of infection was likely linked to a market in Madou. The flow of people at the market was complex, and most individuals were untraceable due to the lack of a registry, which may have contributed to the spread of dengue fever to other areas. Therefore, the local government swiftly mobilized cross-sectoral responses, collaborating with the Centers for Disease Control and other relevant agencies to conduct extensive epidemiological investigations, provide public health education, eliminate breeding sites, engage in community mobilization, and implement chemical control measures. These efforts successfully controlled the outbreak. This case study aims to share lessons learned in managing a dengue fever outbreak in a market setting, providing insights for similar public health interventions.