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本文报告1986年4月成都某大学的一起流感爆发,学生中罹患率高达28％,流行高峰在4天以内。从32份急性期流感病人咽漱液标本中共分离出三株病毒。经病毒学鉴定和患者双份血清的血清学试验证实,此新分离的三株病毒均属新甲1型流感病毒的变种,其抗原性与我国北方正在流行的A1/青防85-42相似。提示新甲1型流感病毒的变种在我国已由北向南传播。
This article reports a flu outbreak in a university in Chengdu in April 1986, with an attack rate of up to 28% of students and a peak prevalence of less than four days. Three viruses were isolated from 32 pharyngeal swab samples of acute phase influenza patients. Serological tests confirmed by virological identification and double serum of patients confirmed that the three newly isolated viruses belong to the class of influenza A virus and their antigenicity is similar to the prevailing A1 / Qing-proof 85-42 in northern China . Tip of the new type 1 influenza virus variants in our country has been spread from north to south.