What is seasonal influenza (flu)?

Seasonal influenza, commonly called “the flu,” is caused by influenza viruses, which infect the respiratory tract (i.e., the nose, throat, lungs). Unlike many other viral respiratory infections, such as the common cold, the flu can cause severe illness and life-threatening complications in many people. Influenza occurs globally with an annual attack rate estimated at 5%–10% in adults and 20%–30% in children.

What are the complications of flu?

Complications of flu can include bacterial pneumonia, ear infections, sinus infections, dehydration and worsening of congestive heart failure, asthma or diabetes. Stomach symptoms such as vomiting, diarrhea and nausea can also occur but are more common in children.

Who should get the flu shot?

•  Children (6 months & older)
•   Adults
•   Seniors
•  Pregnant women
•  People with health issues (like asthma, diabetes, heart problems)