not all the pneumonia caused by influenza

Influenza virus infection generally to the main, from the respiratory airway inflammation can reduce the defense capability, is induced upper respiratory tract infection, leading to inflammation of an important Yue-Shun. In addition, however, there are many factors, such as bacteria, a result, the physical, chemical factors, such as allergies and immune response can cause pneumonia. So suffering from influenza may be secondary to pneumonia, but not because of pneumonia caused by the flu.