Methods Cell culture technology was used in MDCK cells to observe antiviral action of abstracts of Nervilia fordii against influenza virus A(FM1 strain) and B(Kun 70B strain).

• 方法选用狗肾细胞培养法考察青天葵不同极性部位对甲型(FM1)、乙型(昆40B)流感病毒的作用。