Flu is a kind of cold but severe than common cold and is caused by the influenza virus. flu season starts from October and extends till may.
Flu is a very contagious disease which not properly taken care can turn chronic and also fatal.
once flu hits one member of the family everyone else in the family are at high risk of containing it. this is because the flu is caused by a virus and this virus is very strong and can infect in any way. It is an air borne, water borne and passes through human touch.
Every time you sneeze the virus particles present in the nasal fluid are spread about 7 feet long turning your home into an bio hazard. now who ever comes in contact with these virus particles they get infected by flui.