CHICAGO (Reuters) - The U.S. has detected its first case of avian flu on a commercial poultry farm since April, in a flock of 47,300 turkeys in Jerauld County, South Dakota, the U.S. Department of Agriculture (USDA) said.
Infected flocks are culled to prevent the spread of the virus, potentially tightening the poultry meat and egg supply if more cases occur.
Wild birds like ducks transmit the virus.
Prior to this week's outbreak, U.S. infections were limited to live bird markets and "non-poultry" birds since April, USDA records show.
The last commercial farms infected in April raised turkeys in South Dakota and North Dakota, records show.
Persons:
Tom Polansek, Bill Berkrot
Organizations:
CHICAGO, U.S, U.S . Department of Agriculture, USDA, Farmers, Maine Foods
Locations:
Jerauld County, South Dakota, Cal, Maine, U.S, North Dakota