2010年度内蒙古自治区流行性感冒监测分析

Analysis of influenza surveillance in 2010

目的:分析内蒙古自治区2010年4月-2011年3月流感监测结果,为内蒙古流感防控工作提供科学依据。方法:收集和分析内蒙古自治区2010年度流感样病例(ILI)监测数据。采集ILI咽拭子标本进行流感病毒核酸检测并分析病原学监测资料。结果:2010年度,内蒙古自治区ILI%是1.64%,流感病毒核酸检测阳性率为11.06%。东部、中部和西部的夏秋季、中部和西部的冬春季检出率最高的流感病毒分别是A(H1N1)、B型和A(H3N2)。结论:内蒙古地区2010年4月-2011年3月均有流感病毒活动,东部地区主要流行A(H1N1)流感病毒,中部和西部冬春季主要流行A(H3N2)流感病毒。

Objective： To analysis the surveillance results of influenza in Inner Mongolia from April 2010 to March 2011, and to provide scientific evidence for predicting and controlling the epidemic of influenza. Methods： In Inner Mongolia, surveillance data from April 2010 to March 2011 of influenza -like illness （ILI） case were collected and analyzed. PCR was used to detect nucleic acid of the influenza virus from oropharyngeal swab of ILI cases in sentinel hospital. Results： In Inner Mongolia, the percentage of ILI（ ILI% ） in sentinel hospitals was 1.64% from April 2010 to March 2011. The influenza positive rate was 11.06% by PCR. Influenza A （ H1 N1 ） viruses were mainly detected from specimens in east Inner Mongolia. In the middle and the west region, influenza B viruses were the predominant circulating viruses in the summer and autumn of 2010 while influenza A（H3N2） viruses became the predominant circulating viruses from October 2010 to March 2011. Conclusion： In Inner Mongolia, influenza virus kept activation in whole year. Influenza A （ H1 N1 ） viruses was the predominant circulating viruses in the east re- gion. However, in the middle and west region, the predominant circulating viruses was influenza A （H3 N2） viruses.