[Identification of mouse acute pneumonia model induced by influenza virus using gene clone and sequence analysis].

Objective: To identify mouse acute pneumonia model induced by influenza virus adapted strains (FM1 strain) using RT-PCR, gene clone and sequence analysis and pathological examination of lung tissues.

Methods: Acute pneumonia was induced by intranasal drip of FM1 strain. The lungs were collected after 3, 5 and 7 days.

[Experimental study on anti-influenza virus infection with yinqiao-decoction by orthogonal design].

Objective: To investigate composition principle of Yinqiao-decoction through experiment of anti-influenza.

Methods: The effects of different compositions of Yinqiao-decoction on the index of hemagglutinin titre of virus in the lung tissue of mice infected with virus from nose were investigated by orthogonal design.

Results: According to the hemagglutinin titre of virus in the lung tissue of mice, the necessary effective drugs of Yinqiao-decoction are forsythia suspense, flos lonicerae, fructus arctii, schizonepeta tenuifolia, folium phyllostach lophatheri, glycyrrhiza uralensis, platycodon grandiflorum and mentha haplocalyx, and semen sojae preparatum isn't necessary.