DES MOINES, Iowa (AP) — Officials announced Monday that they have identified bird flu in a commercial turkey flock in northwest Iowa, the state’s second case of a virus that has been identified in multiple U.S. states.
Iowa agriculture officials and the U.S. Department of Agriculture confirmed the case in Buena Vista County, about 100 miles north of the case identified March 1 in a backyard flock of 42 ducks and chickens in Pottawattamie County.
Gov. Kim Reynolds signed a disaster proclamation for Buena Vista County to allow state resources to help with disposal of the affected flock and disinfection of the farm. Officials didn’t immediately disclose the number of birds involved. The emergency declaration also provides resources for tracking, monitoring and the rapid detection of bird flu.
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The discovery of avian influenza is especially troubling in Iowa, the nation’s leading egg producer. In 2015, an outbreak led producers to kill 33 million hens in the state and 9 million birds in Minnesota, the nation’s leading turkey producer. Smaller outbreaks were reported in Nebraska, South Dakota and Wisconsin.
Iowa Secretary of Agriculture Mike Naig said in a statement that state and federal agriculture officials are working with producers “to trace back, control and eradicate this disease from our state.”
Avian influenza is an airborne respiratory virus that spreads easily among chickens through nasal and eye secretions, as well as manure. The virus can spread from flock to flock by wild birds, through contact with infected poultry, by equipment, and on the clothing and shoes of caretakers.
The U.S. Centers for Disease Control and Prevention said the recent bird flu detections do not present an immediate public health concern. No human cases of these avian influenza viruses have been detected in the United States. While it can be transmitted to humans, it is unusual and typically due to close contact with infected birds.
The first infection this year was identified in a commercial flock of turkeys in Indiana on Feb. 9. Since then, five additional flocks have been found with cases in Indiana, where more than 171,000 birds have been killed and removed. The virus also was detected in a flocks of turkeys and broiler chickens in Kentucky last month, resulting in the destruction and disposal of more than 284,000 birds. A commercial chicken flock in Delaware also was infected, leading to the disposal of 1.2 million birds, the USDA said.
In the past few days officials have identified the virus on a southeast Missouri farm with 240,000 broiler chickens, a commercial mixed species flock in southeastern South Dakota and an egg-laying hen operation in northeast Maryland.
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