by Elizabeth Cronin, NDSU Agriculture Communication

As hunters prepare for goose and duck hunting season, they are encouraged to review biosecurity practices to protect domestic birds and livestock from highly pathogenic avian influenza (HPAI). Positive cases of HPAI continue to be reported in wild birds, domestic birds and dairy cattle.

“If you hunt game or wild birds and own domestic poultry or livestock, do not wear hunting clothes or footwear while you are interacting with your poultry or livestock.” — Miranda Meehan

This risk of transmission increases during hunting season due to increased interactions with wild birds that may be carrying HPAI. Hunters who have contact with domestic poultry and livestock should be aware of what steps to take if they see sick or deceased wildlife, advise North Dakota State University (NDSU) Extension specialists.

“If you hunt game or wild birds and own domestic poultry or livestock, do not wear hunting clothes or footwear while you are interacting with your poultry or livestock,” says Miranda Meehan, NDSU Extension livestock environmental stewardship specialist. “Infected birds shed [avian influenza] viruses in their saliva, mucous and feces.”

The primary carriers of avian influenza A are waterfowl, gulls, terns and shorebirds. H5N1 HPAI has been detected in wild birds throughout all U.S. migratory flyways. Wild birds can be infected without showing symptoms of the infection. While waterfowl are the primary carriers, positive cases are documented in predatory birds and mammals.

All poultry or livestock owners, no matter the size, should practice good biosecurity to protect their animals from HPAI.

“The best defense against HPAI is having a biosecurity plan in place,” says Mary Keena, NDSU Extension livestock environmental management specialist. “It is your job as an animal owner to create a line of separation between your clean animals and the potential unclean issues that wildlife or visitors may bring.”

Practices to put in place

The biosecurity practices to consider implementing to reduce the risk to domestic birds are:

• Do not haul disease home. If you’ve been out walking in fields or wetlands while hunting, be sure to change clothing and footwear before crossing the clean/dirty line to care for your animals.

• Do not walk or drive trucks, tractors or equipment through areas where waterfowl or other wildlife feces may be. If you cannot avoid this, clean your shoes, vehicles and equipment thoroughly to prevent transferring disease.

• Field-dress game birds, when possible, to reduce the potential for disease transfer.

• Dogs are not at high risk of contracting the virus; however, there have been documented cases of dogs transmitting HPAI to domestic flocks. If your dog has interacted with wildlife, take measures to keep it away from poultry or livestock.

• If visitors will interact with your poultry or livestock, make sure you know where they have been, require them to wash their hands, and ensure their clothes and footwear are clean and disinfected.

• Reduce the attractiveness for wild birds to stop at your place by cleaning up litter and spilled feed around animal housing areas.

• If you have free-range guinea fowl and waterfowl, consider bringing them into coops or flight pens under nets to prevent interaction of domesticated poultry with wild birds and their droppings.

• Non-lethal methods to deter wildlife are available on the USDA Wildlife Damage webpage: https://bit.ly/deter-wildlife.

Avian influenza surveillance and testing in wild birds is being done by the USDA Animal and Plant Health Inspection Service (APHIS) and the North Dakota Game and Fish Department. Report sick and dead wildlife at https://bit.ly/mortality-report. Direct wild bird avian influenza questions to the North Dakota Game and Fish Department at 701-204-2161.

Avian influenza is a zoonotic disease, meaning there is a chance it can be transferred to humans.

“While this risk is low, hunters of wild birds are more likely to have increased exposure to the virus, which may increase risk of infection.” — Mary Keena

“While this risk is low, hunters of wild birds are more likely to have increased exposure to the virus, which may increase risk of infection,” says Keena.

According to the Centers for Disease Control and Prevention (CDC), if you must handle wild birds or sick or dead poultry, minimize direct contact by wearing gloves and washing your hands with soap and water after touching birds. If available, wear respiratory protection such as a medical face mask. After handling wild birds, discard the gloves and face mask, change your clothing, disinfect footwear, and then wash your hands with soap and water.

The North Dakota Game and Fish Department suggests the following practices to reduce risk of infection:

• Do not handle game that is found dead or appears to be sick.
• Do not eat, drink or smoke while cleaning game, and avoid contamination of your eyes, mouth, nose, or any open cuts or sores with blood or other fluids from game that you are cleaning.
• Wash hands, cleaning utensils and other surfaces with soap and hot water immediately after cleaning game.

There is no evidence that anyone has contracted the virus from eating a properly cooked bird, either domestic or wild. It is always a safe practice to fully cook wild game to 165° F, regardless of whether there is a threat of HPAI.

More information about HPAI and handling wild birds is available from:

• NDSU Extension: Highly Pathogenic Avian Influenza — ag/hpai
• NDSU Extension: Care and Handling of Game Birds — ag/gamebirds
• North Dakota Game and Fish — https://bit.ly/nd-avian-influenza
• USDA Animal and Plant Health Inspection Service — https://bit.ly/usda-hpai

Editor’s note: Elizabeth Cronin is an editor for NDSU Agriculture Communication.

Angus Beef Bulletin EXTRA, Vol. 16, No. 9-B