目的对洛阳市一起输入性登革热疫情开展流行病学调查,为处置疫情提供科学依据。方法按照国家登革热控制指南及现场流行病学方法采取流行病学调查、实验室诊断、媒介控制等措施。结果病例实验室确诊为登革热,经隔离治疗痊愈;病例发病前有泰国旅行史;居住地媒介监测发现白纹伊蚊,密度6.67%,布雷图指数20,经消杀及持续监测,布雷图指数由20降为0;密切接触者随访,无二代病例发生。结论这是一起输入性登革热疫情,处置及时、规范,疫情得到有效控制。 Objective To carry out epidemiological investigation of imported dengue fever in Luoyang and provide a scientific basis for handling the epidemic. Methods According to the national guidelines for dengue fever control and on-site epidemiological methods, epidemiological investigation, laboratory diagnosis and media control measures were taken. Results The case laboratory was diagnosed as dengue fever and healed by isolation treatment. Before the onset of disease, there was a history of travel in Thailand. Aedes albopictus was found in residential area with a density of 6.67% and the Bretti index was 20. After killing and continuous monitoring, From 20 to 0; follow-up close contacts, no second-generation cases. Conclusion This is an imported dengue fever epidemic. The treatment is timely, standardized and the outbreak is effectively controlled.