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Avian influenza

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Avian influenza

Background

Avian influenza, also known as bird flu, is an infectious disease of birds caused by the influenza A virus. A variety of influenza subtypes can be found in birds, especially water fowl and shore birds. Domestic poultry are vulnerable to infection and outbreaks can rapidly develop in flocks.

Avian influenza rarely infects humans and does not transmit easily between humans. Infection can range from mild illness to death. The epidemiology and virology of avian influenza viruses are continually monitored by the World Health Organization (WHO) due to their pandemic potential.

Guidance

View our guidance on avian influenza:

You can also read guidance from Public Health England (PHE):

For all infection prevention and control guidance visit the A-Z pathogens section of the National Infection and Prevention Control Manual.

Data and surveillance

View the Public Health England annual surveillance of influenza and other respiratory viruses in the UK.