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How Does Seasonal Flu Differ From Pandemic Flu?

Seasonal Flu

Pandemic Flu

Outbreaks follow predictable seasonal patterns;
occurs annually, usually in winter, in temperate climates
Occurs rarely (three times in 20th century—last in 1968)
Usually some immunity built up from previous exposure No previous exposure; little or no pre-existing immunity
Healthy adults usually not at risk for serious complications;
the very young, the elderly and those with certain
underlying health conditions at increased risk for serious
complications
Healthy people may be at increased risk for serious
complications


For additional information on seasonal flu visit: http://www.hhs.gov/flu/.

Read More "Understanding Flu" Articles

Understanding Flu / Is It a Cold or the Flu? / How Does Seasonal Flu Differ From Pandemic Flu? / Preventing Influenza

Fall 2006 Issue: Volume 1 Number 1 Page 20