  Influenza is a virus that multiplies in the human respiratory system. It is also known as a flu but its different from a common cold. It could be spread by coughing and sneezing. The virus can enter the air and if person will inhale the air he might get the flu as well. You should definitely rest and drink lots of liquids like juice. Some symptoms of influenza are fever, headache and feeling dizzy. The symptoms appears a day after you get the virus or maybe even five. Examples of influenza diseases worldwide are the Spanish Flu, Asian Flu and Hong King Flu. The information was taken from the urlLink CDC Website 
