Fig. 4From: Effects of different principles of Traditional Chinese Medicine treatment on TLR7/NF-κB signaling pathway in influenza virus infected miceLung histopathology in wild type and TLR7 KO mice infected with influenza FM1. The lungs were collected on day 6 postinfection, and sections were prepared for histopathological analysis. a, b Indicate C57BL/6 wild mice and TLR7 KO mice, respectively. This figure shows representative results of experiments with ten mice in each group. Bars = 100 μmBack to article page