Twenty Chinese herbs such as Radix Astragali, Radix isatidis and rhizome belamcandae, and amantadine and neutral acriflavine were used in anti-virus experiment in vitro.

• 选用黄芪、板蓝根、射干等二十种中草药和金刚烷胺、中性丫啶黄两种西药为试验药物进行体外抗病毒试验。