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Seasonal flu is a respiratory illness caused by an influenza virus, which spreads easily from person to person. Following are some key facts about seasonal influenza*:

• Each year about 10% of the population becomes ill with seasonal flu.
• For most, the illness is unpleasant but not life threatening.
• The very young and those over 65 years old are at greater risk of serious complications. So are those with:
• HIV/AIDS
• Cancer
• Other chronic conditions, such as kidney, lung or heart disease
• Annual flu vaccine is the best way to protect against seasonal flu.

What is the difference between pandemic influenza and seasonal influenza?
Seasonal outbreaks (epidemics) are caused by subtypes of influenza viruses that are already in existence among people, whereas pandemic outbreaks are caused by new subtypes or by subtypes that have never circulated (spread) among people or that have not circulated among people for a long time. Past influenza pandemics have led to high levels of illness, death, social disruption, and economic loss.

• HHSA Flu Update
• For more information on seasonal flu and vaccines, phone 619-692-8661.
• Please see the brochure,“Pandemic Flu…what should I do?*” and other materials under Resources.
• The Centers for Disease Control and Prevention maintains current information on Influenza (Flu).

For more information about pandemic influenza, send us an email or phone (888) 633-1330.