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目的分析青海省2010-2012年流感样病例监测结果,掌握流行性感冒流行趋势,为制定防控措施提供科学依据。方法依托中国流感监测信息系统,按照《全国流感监测方案》要求在青海省15家流感监测哨点医院开展流感样病例流行病学和病原学监测。结果 2010-2012年青海省流感样病例以冬春季节高峰明显,共报告流感样病例39 607例,门急诊病例总数就诊百分比为2.31%(39 607/1 715 116);流感样病例主要集中在15岁以下儿童,共29972例,占75.67%;real-time RT PCR核酸检测共检出阳性标本648份,阳性率为8.27%(648/7 832),不同年份检出阳性标本型别有所不同。结论青海省流感样病例全年均有发生,以冬春季为高发季节,不同型别的流感病毒在不同年份表现出交替占优势的特征,侵袭的人群以儿童为主。
Objective To analyze the surveillance results of influenza-like cases from 2010 to 2012 in Qinghai Province, grasp the epidemic trend of influenza and provide a scientific basis for making prevention and control measures. Methods Based on China Influenza Surveillance Information System, epidemiological and pathogenic surveillance of influenza-like cases were conducted in 15 influenza surveillance sentinel hospitals in Qinghai Province according to the “National Influenza Surveillance Program”. Results A total of 39 607 flu-like cases were reported in 2010-2012 in Qinghai Province, with a peak in winter and spring. The total number of outpatient visits was 2.31% (39 607/1 715 116). Influenza-like cases were mainly concentrated in A total of 29972 cases accounted for 75.67% of children under the age of 15, and 648 positive samples were detected by real-time RT PCR. The positive rate was 8.27% (648/7 832). The positive samples were detected in different years different. Conclusion Influenza-like cases occurred in Qinghai Province throughout the year, with winter and spring as the high season. Influenza viruses of different genotypes showed the predominance of alternating predominance in different years. The majority of the affected people were children.