Killer virus sweeps through state as 95% of animals are wiped out

A killer bird outbreak has hit multiple farms in - and the variant has wiped out millions of birds from one of the United States's largest egg producers.

Chickens at Hickman Farms in Buckeye, Arizona began showing symptoms at the end of May.

The initial loss was estimated at 1.1 million birds, but just two weeks after the flock got sick, 6 million have died. That accounted for about 95 percent of Hickman Farms' bird population.

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