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November 2, 2001
Facts
about influenza
What is it?
Influenza (flu) is a highly contagious viral infection of the nose, throat and
lungs. Influenza is caused by the influenza virus.
Typical influenza illness is characterized by the abrupt
onset of high fever, chills, a dry cough, headache, runny nose, sore throat and
muscle and joint pain.
Who is at risk?
Everyone is at risk for contracting influenza.
Influenza and its complications can be especially harmful for people 65 years of
age and older. The most common complication of influenza is pneumonia.
Can it be prevented?
The best protection against influenza is a flu shot.
Why is it necessary to get vaccinated every year?
Different influenza strains circulate every flu
season. Based on government recommendations, manufacturers develop each year's
vaccine with the three strains of influenza that scientists have predicted to be
most common in the coming flu season.
What are the side effects of the vaccine?
The most common type of side effect is soreness at the
injection site. Soreness can last up to two days, is mild and rarely will impair
daily activities.
Who should not be vaccinated?
Individuals with egg allergies or those who have had a
previous vaccine-associated allergic reaction should avoid immunization. Adults
with acute febrile illnesses should usually wait until their symptoms abate
before seeking vaccination.
* Information provided by the National Center for Disease Control