What is Influenza?

Influenza is a contagious respiratory disease that can be prevented by immunization. It is not the same as the "stomach flu." Flu is caused by a virus that attacks the nose, throat, and lungs. It can cause mild to severe illness and at times can lead to death.

What are the symptoms of flu?

Influenza symptoms come on quickly in the form of fever, dry cough, sore throat, headache, extreme tiredness, stuffed-up nose, and body aches. These symptoms can be severe and put you in bed for several days.

How is the flu different from a cold?

A cold generally stays up in the head while the flu brings body aches, fever, and extreme fatigue. A person with a cold will usually keep up his or her normal activities, while someone with the flu will often feel too sick to do so.