Highly Pathogenic Avian Influenza Detected in Lapeer Co. Flock

Following an investigation by the Michigan Department of Agriculture and Rural Development (MDARD), the Michigan State University Veterinary Diagnostic Laboratory has detected the presence of highly pathogenic avian influenza (HPAI) in upland gamebirds from a hunting preserve in Lapeer County. This is the second detection of HPAI in a Michigan domestic flock in 2023, and the fifth case detected in Lapeer County. As wild birds continue to migrate, bird owners need to take every possible precaution to prevent their flocks from being exposed to the disease.

"Over the past two weeks, MDARD has seen an increase in the number of calls we are receiving regarding sick domestic birds. The risk for HPAI will remain high as the disease continues to mainly be spread through the migration of wild birds," said State Veterinarian Dr. Nora Wineland. "It is crucial for every bird owner to take action to stop this route of transmission by keeping their flocks away from bodies of water wild birds could visit, bringing their flocks indoors, and following other protocols to prevent the virus from being introduced to their birds. Keeping HPAI out of Michigan's domestic birds is a team effort."

HPAI is a highly contagious virus that can be spread in various ways from flock to flock, including by wild birds, through contact with infected poultry, by equipment, and on the clothing and shoes of caretakers. To protect other flocks in Michigan, the premises is currently under quarantine, and the birds will be depopulated to prevent disease spread. The flock contained approximately 1,100 birds.

According to the U.S. Centers for Disease Control and Prevention, the public health risk associated with this avian influenza detection remains low. Also, no birds or bird products infected with HPAI will enter the commercial food chain. As a reminder, people should properly handle and cook all poultry and eggs.

Whether it's a few backyard birds or a large commercial flock, following a few key steps is fundamental to protect the health and vitality of Michigan's domestic birds:

• Prevent contact between domestic and wild birds by bringing them indoors or ensuring their outdoor area is fully enclosed.
• Wash your hands before and after handling birds as well as when moving between different coops.
• Disinfect boots and other gear when moving between coops.
• Do not share equipment or other supplies between coops or other farms.
• Clean and disinfect equipment and other supplies between uses. If it cannot be disinfected, discard it.
• Use well or municipal water as drinking water for birds.
• Keep poultry feed secure to ensure there is no contact between the feed/feed ingredients and wild birds or rodents.

MDARD is continuing to work diligently with local, state, and federal partners to quickly respond to reports of sick or dead domestic birds to best mitigate the spread of HPAI and provide outreach.

Reporting Possible Cases

For Domestic Birds

Domestic bird owners and caretakers should watch for multiple sudden deaths in the flock, a drop in egg production, a significant decrease in water consumption, diarrhea, sneezing/coughing, or an increase in sick birds. If avian influenza is suspected in domestic birds, contact MDARD immediately at 800-292-3939 (daytime) or 517-373-0440 (after-hours).

For Wild Birds

If anyone notices what appears to be unusual or unexplained deaths among wild bird populations, please report these cases to the Michigan Department of Natural Resources (DNR) by:

• Using the DNR's Eyes in the Field app at https://bit.ly/3lEh1Uq. Choose the "Diseased Wildlife" option among the selections for "Observation Forms."
• Calling the DNR Wildlife Disease Laboratory at 517-336-5030.

Subscribe to receive email notifications by visiting MDARD's website and clicking on the "Avian Influenza" link. After entering a valid email address, subscribers will receive updates and alerts regarding the status of avian influenza in Michigan whenever there are new developments to report. Additional resources can also be found at https://www.michigan.gov/mdard/animals/diseases/avian/avian-influenza.

More information on avian influenza and how to protect flocks through biosecurity measures can be found on the U.S. Department of Agriculture's website at https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/avian/avian-influenza/hpai-2022/2022-hpai-commercial-backyard-flocks.