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Disease Control and Environmental Epidemiology DivisionAvian Influenza (Bird Flu)
The avian influenza A (H5N1) epizootic (animal outbreak) in Asia has expanded to wild birds and/or poultry in parts of Europe, the Near East and Africa. Sporadic human infections with H5N1 continue to be reported. In addition, rare instances of probable human-to-human transmission associated with H5N1 viruses have occurred. So far, however, the spread of H5N1 virus from person to person has been rare, inefficient, and unsustained. As of this date, H5N1 has not been identified among animals or humans in the United States. Since no sustained human-to-human transmission of influenza H5N1 has been documented anywhere in the world, the current phase of alert, based on the World Health Organization (WHO) global influenza preparedness plan, remains at Phase 3 (Pandemic Alert). Please visit the following websites for the most up-to-date list of countries affected by avian influenza A (H5N1): Centers for Disease Control and Prevention (CDC) and World Health Organization (WHO)
General Information
Keeping Yourself Safe from Bird Flu: An Important Message for People Traveling to Asia
For more information on travel recommendations please visit CDC's Traveler's Health website. Professional Information and ResourcesInformation for Healthcare Professionals
Return to: Influenza home Return to: Disease Control & Environmental Epidemiology Division home Return to: Health Index |
Please visit the following websites for more information on Avian influenza (H5N1)
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The
epidemiology of H5N1 human infections has not changed significantly since
February 2004. Therefore, CDC recommends that H5N1 surveillance in the United
States remain at the enhanced level first established at that time.
