目的分析发热伴血小板减少综合征病例流行病学特征,为制定预防控制措施提供依据。方法通过流行病学个案调查与描述性分析方法对收集的2011-2013年大连市发热伴血小板减少综合征确诊病例的发病、实验室检测与流行病学史等资料进行分析。结果 2011-2013年大连市共发现本地确诊病例55例,其中死亡16例,大连市14个区(市、县)中有7个存在发热伴血小板减少综合征疫情,病例以丘陵地区的50岁以上人群为主(92.73%),职业以农民及家务待业者为主(90.91%)。7、8月为发病高峰(65.45%)。绝大部分本地病例出现发热症状,体温最低37.1℃、最高40℃,平均39℃,且发热为主要首发症状。大部分病例有乏力(61.82%)、腹泻(50.91%)、食欲减退(80.00%)、恶心(52.73%)等非特异性症状。结论大连市发热伴血小板减少综合征疫情有逐年增多的趋势,需进一步加强监测及研究。 Objective To analyze the epidemiological characteristics of fever with thrombocytopenia syndrome and provide the basis for making prevention and control measures. Methods The epidemiological case studies and descriptive analysis were used to analyze the data collected from 2011-2013 cases of fever with thrombocytopenia syndrome diagnosed in Dalian, laboratory tests and epidemiological history. Results A total of 55 local diagnosed cases were found in Dalian from 2011 to 2013, including 16 deaths. Of the 14 districts (cities and counties) in Dalian, 7 were found to have fever and thrombocytopenia syndrome. The cases were in the hilly region of 50 years The majority of the above population (92.73%), occupation mainly farmers and home-based workers (90.91%). July and August as the peak incidence (65.45%). The vast majority of local cases of fever symptoms, the lowest body temperature of 37.1 ℃, up to 40 ℃, an average of 39 ℃, and fever as the main first symptom. Most cases have nonspecific symptoms such as fatigue (61.82%), diarrhea (50.91%), loss of appetite (80.00%) and nausea (52.73%). Conclusion The epidemic situation of fever with thrombocytopenia in Dalian tends to increase year by year, so it is necessary to further strengthen the monitoring and research.