Avian Influenza Detected in Clinton County Dairy Herd

Avian Influenza Detected in Clinton County Dairy Herd

Michigan Department of Agriculture and Rural Development (MDARD) Director Tim Boring announced the detection of highly pathogenic avian influenza (HPAI) in a dairy herd from Clinton County, marking the 25th affected dairy herd in Michigan. The initial detection was made by the Michigan State University Veterinary Diagnostic Laboratory, with samples sent to the USDA’s National Veterinary Services Laboratories for confirmation.

Biosecurity is the best defense against HPAI. On May 1, 2024, Director Boring issued an emergency risk reduction order requiring enhanced biosecurity measures for all Michigan dairy operations, effective May 8, 2024. Additional guidance was provided on May 3, 2024, to help producers implement these measures.

Key biosecurity steps include:

  • Delay or stop the introduction of animals from herds with unknown health status.
  • Isolate new or returning animals.
  • Monitor animal health daily.
  • Consult veterinarians for health concerns or secure food supply plans.
  • Use dedicated equipment for sick animals and disinfect after use.
  • Avoid sharing tools and equipment with other farms.
  • Clean and disinfect animal transport trailers.
  • Limit farm visitors and enforce clean clothing and footwear protocols.
  • Provide hand-washing stations and gloves.

MDARD, along with state and federal partners, is monitoring herd health, conducting trace investigations, and supplying personal protective equipment to dairy operations.

For more information, visit Michigan.gov/BirdFlu and the USDA website.

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