LINCOLN, Neb. (AP) — A fourth case of bird flu has been confirmed on a northeast Nebraska farm.
The state Agriculture Department said Wednesday the latest case involves 3 million hens on a farm in Knox County.
The new case of contagious bird flu was found 50 miles away from three cases in Dixon County that involved 4 million birds. All four of the infected farms are owned by the same company.
The Knox County farm has been quarantined, and nearby farms with birds will be tested.
Agriculture Director Greg Ibach says poultry farmers should restrict how many people and vehicles enter their farms.
Officials say the bird flu doesn't represent a significant health risk for humans, but more than 40 million birds have been killed nationwide to limit the spread of the disease.