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Guides: Bird Flu

Last Updated: Tuesday March 01 2005 14:50 GMT

What is bird flu?

Thai chicken farm
Bird flu is not the same disease that we get when we talk about people having flu in the UK.

The bird flu is caused by the avian influenza virus HN51.

It mainly affects birds and so far several million chickens have either died or had to be killed because of the disease.

The virus has also been passed to humans and a small number of people have died after catching it.

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