Chinese Medicinal Herbs Treatment on Novel Influenza A (H1N1)Pneumonia: Multi-centre, Prospective, Randomized Controlled Study

Inclusion Criteria: * Confirmed novel influenza A(H1N1) case with laboratory evidence * 70 ys ≥ age ≥14ys * Within 72hr after the onset of symptoms(body temperature≥37.5℃ with at least one respiratory symptom (cough, sore throat, or nasal symptom) * New lung infiltration showed by chest radiology(x-ray or CT) Exclusion Criteria: * Age\<14ys or \>70ys * Pregnancy * Severe chronic underlying diseases: severe COPD(FEV1/EVC \<70% and FEV1 \<30% predicted or respiratory failure or congestive heart failure), severe liver disfunction（ALT or AST ≥3 times normal elevation), renal disfunction（Cr\>2mg/dL), chronic heart failure(NYHA Ⅲ-Ⅳ grade） * Immunocompromised patients(cancer, organ transplant, AIDS and a history of treatment with immunosuppressive drug and glucocorticoids in the past 3 months) * Taken Chinese medicinal herbs, antiviral or antibiotic drug in the past 2 weeks * Inoculation influenza vaccination * One of the following items appeared at the enrollment * respiratory failure：PaO2\<60mmHg and/or PCO2\>50mmHg or PaO2/FiO2≤300 * circulation failure: despite adequate fluid resuscitation and cardiac output, systolic \<90mmHg or requirement inotropic support * renal function failure: despite adequate fluid resuscitation and cardiac output, urine ≤ 0.5ml/kg.h, Cr or BUN≥1 time normal elevation * liver function failure: total bilirubin\>34μmol/L or ALT/AST ≥3 times normal elevation * Other unappropriated enrollment situations considered by investigator