Exclusion criteria:
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(1) Mental illness, or other cooperation or not let collaborators.
(2) for nearly three months to participate in other subjects.
(3) the researcher has the following flu complications in patients with known risk factors:
A) pregnancy women or puerperal women;
B) chronic respiratory diseases, including COPD and asthma;
C) the nervous system diseases and neurodevelopmental disorders, including brain, spinal cord, peripheral nerve and muscle disease (for example, cerebral palsy, epilepsy seizure, stroke, mental retardation, moderate to severe retardation, muscular dystrophy or spinal cord injury (sci).
D) heart disease, for example, congenital heart disease, congestive heart failure, or coronary artery disease), not including any other heart related symptoms of high blood pressure;
E) blood system diseases;
F) the endocrine system diseases (not including glycosylated hemoglobin < 8%;
G) kidney disease: creatinine clearance 60 mL/min or less;
H) of the liver disease including hepatitis, liver cirrhosis, moderately severe fatty liver, not including the AST and ALT rise less than the upper limit of normal 50 % asymptomatic liver function is unusual).
I) metabolic disorders (protein metabolism disorder, sugar metabolic disorder, lipid metabolism disorders, water, electrolyte metabolic disorders, high blood uric acid);
J) immune system damage (including patients with immunosuppressive therapy, or cancer or patients with human immunodeficiency virus (HIV) infection);
K) in patients with obesity (body mass index (BMI) of 30 or more).
(4) the index case weight < 40 kg;
(5) has a history of alcohol or drug abuse.
(6) within 30 days before the screening, have received the following medications: Baloxavir, palmer peramivir, pull nimmi wei, oseltamivir and zanamivir, rimantadine, Abby dole, amantadine hydrochloride or experimental drugs;
(7) 12 months to receive influenza vaccination;
(8) into groups of 6 h used antipyretic analgesic drugs;
(9) into the group of 12 h application anti-flu features of proprietary Chinese medicine.
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