Objective: To explore the effect of TLR4 on type A influenza virus induced lung tissue injury, and to further explore the intervention effect of Maxing Shigan Decoction (MXSGD). Methods: The WT influenza virus model in mice infected with influenza A virus was established. The mice were devided into low, medium, and high dose MXSGD groups, oseltamivir group, IAV group, and Sham group. After 7 d, the treated animals were treated with corresponding clinical equivalent dose of drug. Detection in mouse body weight, lung index, spleen index, thymus i...