U.S. zoos on high alert as bird flu outbreak killed millions of birds - CGTN

The avian influenza outbreak in the United States have claimed the lives of millions of birds, prompting zoos throughout the country to take steps to protect their inhabitants from the outbreak.

An outbreak of avian influenza in the United States has claimed the lives of millions of birds, prompting zoos throughout the country to take steps to protect their flock from the disease. Over 24 m… [+2341 chars]

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