Spread of bird flu raises concern for humans, international animal health body says

Avian influenza, commonly called bird flu, has led to the culling of hundreds of millions of poultry around the globe in the past years, with the virus mostly carried by migrating wild birds.

 

Although the number of outbreaks has been lower this season the virus has spread to new regions, including South America and Antarctica, and hit a larger number of animals, decimating colonies of rare species.

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