What is Influenza or flu?
Influenza (flu), caused by influenza virus, is a contagious respiratory illness that affects
the nasal passage, throat and sometimes lungs causing mild to severe illness. This virus
is easily transmitted from person-to-person via droplets. This infection
is usually characterized
by sudden onset of high fever
, headache, aching muscles, nonproductive cough and sore throat.
Serious outcomes of this infection