influenza cause
Flu Illness
boss and drubert - alx diss
The influenza virus causes the classic flu. Health professionals classify the virus as influenza type A and type B, each of which includes several subtypes or strains.In more serious cases, causes pneumonia, which can be fatal, of breath while they have the flu, and influenza may cause worsening of coronary — Comprehensive overview covers symptoms, prevention, treatment and self-care of the flu. types A or B can cause the flu that circulates almost . .
