Keywords Guizhi decoction;Mahuang decoction;Mahuang Guizhi each half decoction;H1N1 of Influenza virus;viral pneumonia;

• 桂枝汤;麻黄汤;桂枝麻黄各半汤;甲1（H1N1）亚型流感病毒;流感病毒性肺炎;