Caused by influenza virus infection (Influenza virus) infection by influenza season can be classified into 3 types: type b and c by HIV most common is swine influenza (H1N1) type (H3N2) and type b secondary: c.
Caused by the influenza virus (Influenza virus) infected by seasonal flu. Can be classified into three types A, B and C. Type A is the most common influenza type A (H1N1) (H3N2), followed by B and C.
Caused by influenza virus (Influenza virus) by seasonal influenza infections can be classified into 3 type: type A, B. And C, the most common is the influenza A (H1N1) (H3N2) followed by type B and C.