The news came on the heels of two bird flu outbreaks in poultry operations. On May 28, IDALS said the virus was found in a Sioux County flock with 4.2 million egg-laying chickens. A commercial turkey flock with over 100,000 birds in Cherokee County was hit on June 2.
“Highly Pathogenic Avian Influenza continues to pose a significant threat to our livestock and the livelihoods of the farmers that care for them,” said Iowa Secretary of Agriculture Mike Naig in a press release .
IDALS said it is “updating existing testing protocols to include testing of dairy farms around infected poultry sites,” which is already in place for poultry. The goal is to better understand the possible spread of the virus and boost the agency’s ability to respond to future outbreaks.
While there are no restrictions at this time for moving dairy cattle within Iowa, IDALS said the USDA’s federal order from April is still in effect. It requires a negative test for H5N1 in lactating cows before they’re moved across state lines. Labs and state veterinarians are mandated to report positive test results to the USDA.
IDALS said it's considering additional requirements for fairs and livestock exhibitions.
Since the end of March, more than 80 herds and three dairy workers in the U.S. have tested positive for avian influenza A (H5N1). The U.S. Centers for Disease Control and Prevention said the risk to humans remains low, but people who interact with sick or dead animals should wear personal protective equipment.
Teri Bos, the director of Community Health Partners in Sioux County, said her office is working hard to monitor the health of farm workers and others who may be exposed to bird flu.
“We follow up with those individuals for a period of time, really just monitoring if they have any symptoms,” Bos said. “At the national level, at the state level, but also at the county level, this is something that is an emerging illness and we are taking it very seriously.”
The U.S. Food and Drug Administration is monitoring the national milk supply and dairy products, including baby formula, for the virus. The agency said pasteurization effectively inactivates H5N1 and warns against drinking raw milk.
The USDA offers producers financial support for developing and implementing biosecurity plans and reimbursement for veterinary costs associated with sample collection for H5N1 testing. The federal agency said it’s working to make emergency funds available to compensate for lost milk production.
The Iowa Department of Agriculture and Land Stewardship said producers who suspect cases of avian influenza should contact their veterinarian immediately and report possible cases to the department at (515) 281-5305.
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