Pandemic flu occurs when a new virus exists to which people have little or no immunity. This new virus will pass easily from person to person. Because the virus is new and people have not had it before, it could cause large numbers of people to become sick or die. A pandemic flu would likely affect businesses, travel and some basic services for a period of time. It is possible that the H5N1 bird flu virus could change to be easily passed from person to person.
Pandemic Influenza Preparedness and Response Plan
For more information about pandemic flu, visit www.pandemicflu.gov.