Seasonal flu
Occurs annually; is the type of flu we are accustomed to each winter season, so people usually have built up immunity. Seasonal Flu Information

Pandemic flu
Occurs rarely (there have been only 3 pandemics in the 20th century); is a worldwide outbreak of a new human flu virus, so people have little or no immunity. Pandemic Flu Information

Bird Flu
Occurs in birds and not normally in people, but can sometimes jump species and infect people; is also known as avian influenza. Avian Flu Information

More differences between seasonal flu and pandemic flu...

05/03/07
CDC Issues Interim Guidance for the Use of Facemasks and Respirators in Public Settings during an Influenza Pandemic

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02/01/07
HHS Unveils Two New Efforts to Advance Pandemic Flu Preparedness

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10/30/06
Scientists Uncover New Bird Flu Strain

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05/09/06
DHMH Summary of PanFlu School Tabletop Exercise, Feb. 2006

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05/09/06
HHS Response to movie: “Fatal Contact: Bird Flu in America”

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05/09/06
Maryland Improving Readiness for Possible Pandemic Flu

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05/04/06
The National Strategy for Pandemic Influenza

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04/13/06
Expert Says Bird Flu No Imminent Threat
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03/21/06
U.S. to Increase Testing Of Wild Birds for Avian Flu
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03/13/06
HHS Pandemic Planning Update
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03/09/06
USGS Testing Wild Birds for Avian Influenza
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03/7/06
The Face That Helped Alter Nation's Flu Policy
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