【摘要】 〔目的〕了解重庆口岸出入境人群的登革热血清流行病学特征,为重庆口岸地区登革热监控工作提供科学的依据。〔方法〕按系统抽样抽取研究对象,进行登革热IgG抗体血清学检测和流行病学调查。〔结果〕检测1556份样本,其中182份登革热IgG抗体阳性,阳性率11.70%。入境人员阳性率18.87%,明显高于出境人员;外籍人员阳性率超过20%;本市人员不足10%。不同国籍人员间阳性率的差异有统计学意义,其中东南亚国籍人员阳性率62.16%,位列首位。不同职业人员间阳性率的差异有统计学意义,其中有6类人员阳性率超过10%,从高到低依次为渔民/船员、饮食服务人员、离退休人员、教师、商人、民工。曾经有国际旅行经历者阳性率(19.17%)高于没有国际旅行经历者(8.10%);出国频次越高的,阳性率也越高;不同目的国际旅行之间的登革热抗体阳性率的差别有统计学意义,其中出国劳务人员阳性率最高(27.55%);曾经到达不同地区人员的阳性率的差别也有统计学意义,其中有4个地区阳性率超过50%,从高到低依次为加勒比、东南亚、南美、南亚。来自/停留流行区人员的登革热阳性率(32%)明显高于未来自/停留流行区人员的登革热阳性率(9.85%)。多因素分析提示:有国际旅行经历、境外人员血清登革热IgG阳性率高,特别是有频繁出国经历、来自/停留主要流行区、有东南亚居留史是重要危险因素。〔结论〕重庆本地人员登革热暴露机会较少、未发生或极少发生本地传播;对重庆地区而言,重点在传染源的发现和控制。对于口岸登革热防治工作,应有所侧重地对有国际旅行经历的人员的检疫和监测,特别要重点关注出入境频繁的、有登革热流行区居留史的人员。更多还原

【Abstract】 Objective To study seroepidemiology of dengue fever among entry-exit population at Chongqing pot, and to provide scientific evidence for dengue fever prevention and control. Method Systematic sample, epidemiological investigation among entryexit population was conducted. Meanwhile, Serum samples were detected for dengue-IgG antibody. Result Of 1 556 samples, 182 cases were positive, the positive rate was 11.70%. The positive rate of entry personnel (18.87%) was much higher than that of exit personnel. The positive rate of foreigners was More than 20%. There was significant difference in different nationality, the positive rate of south-east Asia personnel was the highest (62.16%). There was significant difference in different occupation. It showed that the transnational experience was wore and the positive rate was higher. Personnel with history in epidemic-region showed higher positive rate. Transnational experience and history in epidemic-region was risk factors. Conclusion The risk of dengue exposure in Chongqing is low. The key for dengue control in Chongqing is identifying and treating the suspicious. For frontier health management, it is initial task to quarentine and inspect for international travelers.更多还原