Question

what is the meaning of flu

Answer 1

a common infection or illness

Answer 2

Influenza commonly known as Flu is caused by Virus. there exist three type of Influenza virus A B and C
common symptoms of Influenza disease are sudden onset of chills, discharge from nose, sneezing, fever, headache, muscular pain and coughing.
there is no specific medicine or drug for this disease only WBC can defeat this disease by making a chemical known as interferon