广东省1996年流感流行分析

An Epidemiological Analysis on Influenza in Guangdong Province

１９９６年２～７月，广东省大部分地区发生流感流行，暴发点集中在中、小学和幼儿园。此次流行特点包括，（１）流感病毒甲３型流行，优势毒株呈“Ｏ”相生物学性状；（２）流行高峰在４、５月，无明显夏季流行峰；（３）流行地区广泛，波及区域主要在人口集中的全省大、中城市及其附近地区；（４）呈学校型暴发，罹患者多为青少年及婴幼儿。针对目前流感抗原变异导致流感流行的现状，建议加强流感监测工作，尤其在流行季节的人群集中生活场所；同时采用流感疫苗免疫接种易感人群，尤其是对儿童和老龄人。

Influenza activity occurred throughout Guangdong Province from February to July in 1996,which was mostly concentrated with domination of H3N2 strain at the middle and primary schools and kindergardens.The characterastics of outbreaks were included in:(1)the prevalent H3N2 strain was with '0' phase biological features;(2)the epidemic peak outbreaks was from April to May and no summer peak ;(3)the outbreak covered widly especially concentrated in metropolitan areas and middle-class cities;(4)most outbreaks occurred in school,and patients were concentrated in teenagers and pre-school children. It was proposed that influenza surveillance should be strengthened,especially in influenza seasons;besides,the susceptible persons such as children and the aged should be inoculated with influenza vaccine.