Influenza commonly known as flu is a viral disease which affects the respiratory system. It is contagious and is spread rapidly through the air via coughs and sneezes. Typical symptoms of influenza (flu) are often rapid and intense and are fever, fatigue, muscle aches, headache, dry cough, nausea, vomiting, sore throat, chills, loss of appetite, eye pain, sneezing and a running nose. Tiredness, depression and weakness may last for several weeks after the main symptoms. Symptoms typically last for days, sometimes weeks and generally make you feel knocked out, influenza (flu) can have serious consequences for those who have a weak immune system such as the elderly, children and cancer, chronic lung disease, heart disease, diabetes, kidney disease and AIDS suffers. Those people who are in the