Fig. 2

Effects of three TCM compounds on body weight loss and lung index of mice infected with influenza virus. C57BL/6 wild type (a) and TLR7 KO (b) mice were infected with 50 μL FM1 virus and then were gavaged with distilled water, containing Oseltamivir, Xinjiaxiangruyin, Guizhi-and-Mahuang decoction or Yinqiao powder daily 24 h after virus infection, respectively. Changes in body weight of each mouse were recorded. Each group was compared to the model group. c The body weight of infected mice and blank were monitored every day for 6 days. The mice were sacrifice on day 6, and the total lung were completely removed and weighed. Lung index = lung weight/body weight × 100%. *P < 0.05, **P < 0.01, ***P < 0.001