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为了监测新分离的甲型流感病毒重组株(郭元吉,等:实验和临床病毒学杂志 1989;3(1);6)能否在人群中造成流感大流行,我们对不同年龄组的200名
In order to monitor whether the newly isolated recombinant influenza A virus (Guo Yuanji, et al., J. Clin. And Clinical Virology 1989; 3 (1); 6) can cause a pandemic in the population, we conducted a survey of 200