chickens

UPDATE – Federal laboratory testing has confirmed two cases of highly pathogenic H5N1 avian influenza (HPAI)—one pullet operation in New Castle County, Delaware, and one broiler flock in Queen Anne’s County, Maryland. Following an investigation by the Delaware and Maryland Departments of Agriculture, the U.S. Department of Agriculture’s (USDA) National Veterinary Services Laboratory has confirmed poultry from these farms have tested positive for highly pathogenic H5N1 avian influenza (HPAI).

These avian influenza findings follow previously announced cases on farms in New Castle County, Delaware, and Cecil County, Maryland. Following these cases, federal and state partners have greatly expanded their surveillance sampling and testing regimen to better protect the poultry industry on the Delmarva Peninsula.

State officials have quarantined all affected premises, and birds on the properties are being or have been depopulated to prevent the spread of the disease.  Birds from affected flocks will not enter the food system.

Avian influenza is a highly contagious airborne respiratory virus that spreads quickly among birds through nasal and eye secretions and manure. The virus 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. This virus affects poultry, like chickens, ducks, and turkeys, along with some wild bird species such as ducks, geese, shorebirds, and raptors.

Considering these new cases and the prevalence of the virus in the wild bird population, all poultry owners need to increase their vigilance in protecting their flocks from contracting avian influenza.

Key biosecurity practices:

  • Clean and disinfect vehicles.  Don’t walk through or drive trucks, tractors, or equipment in areas where waterfowl or other wildlife feces may be. If you can’t avoid this, clean your shoes, vehicle, and equipment thoroughly to prevent bringing disease agents back to your flock. This is especially important when visiting with farmers or those who hunt wildfowl, such as when gathering at a local coffee shop, restaurant, or gas station.
  • Remove loose feed.  Don’t give wild birds, rodents, and insects a free lunch! Remove spilled or uneaten feed immediately and ensure feed storage units are secure and free of holes. Wild birds can carry HPAI.
  • Keep visitors to a minimum. Only allow those people who take care of your poultry to come in contact with your birds, including family and friends. Make sure everyone who has contact with your flock follows biosecurity principles.
  • Wash your hands before and after coming in contact with live poultry.  Wash with soap and water (always your first choice). If using a hand sanitizer, remove manure, feathers, and other materials from your hands because disinfectants will not penetrate organic matter or caked-on dirt.
  • Provide disposable boot covers (preferred) or disinfectant footbaths for anyone having contact with your flock. If using a footbath, be sure to remove all droppings, mud, or debris from boots and shoes using a long-handled scrub brush BEFORE stepping into the disinfectant footbath, and always keep it clean.
  • Change clothes before entering poultry areas and before exiting the property. 
    When handling birds, visitors should wear protective outer garments or disposable coveralls, boots, and headgear. Shower out and change clothes when leaving the facility.
  • Clean and disinfect tools or equipment before moving them to a new poultry facility. Before allowing vehicles, trucks, tractors, or tools and equipment (e.g., egg flats and cases) that have come in contact with birds or their droppings to exit the property, ensure they are cleaned and disinfected to prevent contaminated equipment from transporting disease. Do not move or reuse items that cannot be cleaned and disinfected, such as cardboard egg flats.
  • Look for signs of illness. Know the warning signs of infectious bird diseases.

If You Have Sick Poultry or Experience Increased Mortality in Your Flock:

  • Commercial poultry producers should follow the procedures of contacting the company they grow for when they notice signs of disease.
  • Backyard flock owners who notice any of the signs of HPAI in their flock should contact:
    • In Delaware, email the Delaware Poultry Health Hotline at health@delaware.gov or call 302-698-4507 and provide your contact information, size of flock, location, and concerns.
    • In Maryland, report any unusual or sudden increases in sick birds to the MDA Animal Health Program at 410-841-5810. Commercial chicken growers and backyard flock owners can email questions about the outbreak to Birdflu@maryland.gov.

Additional Information:

For all media requests about HPAI, email: JIC@delaware.gov

Due to biosecurity concerns, no on-site interviews, photos, or videos are allowed. For more information on avian influenza, visit https://de.gov/poultry or https://mda.maryland.gov/Pages/AvianFlu.aspx.

UPDATE —March 7, 2022 – Federal laboratory testing has confirmed a case of highly pathogenic H5N1 avian influenza (HPAI) on a Maryland poultry farm. Following an investigation by the Maryland Department of Agriculture (MDA), the United States Department of Agriculture (USDA) National Veterinary Services Laboratory confirmed a Cecil County sample tested positive for HPAI. The Maryland case comes one week after a HPAI positive in Delaware.

Following the Delaware case, Maryland and its federal and state partners have greatly expanded their surveillance sampling and testing regimen to better protect the poultry industry on the Delmarva Peninsula. To prevent the spread of the virus, depopulation of the affected birds has begun in Cecil County; nothing from the facility will enter the supply chain. The index farm is under a strict quarantine; only authorized personnel will be allowed on the premise. 

“Avian influenza does not affect poultry meat or egg products, which remain healthy and safe to eat and handle. All poultry growers, operators, and owners, including those who manage backyard flocks, must remain vigilant,” said Maryland Agriculture Secretary Joe Bartenfelder. “MDA, USDA and other partner agencies are working diligently to address and localize the situation, including quarantining and testing nearby flocks.” 

Avian influenza is a highly contagious airborne respiratory virus that spreads easily among birds through nasal and eye secretions, as well as manure. The virus 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. This virus affects poultry, like chickens, ducks, and turkeys, along with some wild bird species such as ducks, geese, shorebirds, and raptors. It has appeared sporadically over the last several decades in bird populations throughout the globe. Wild birds can carry the virus without becoming sick, while domesticated birds can become very sick. HPAI is not a public health concern. 

Maryland growers should take the following precautions to protect their flocks: 

  • Restrict access to poultry by posting “Restricted Access” signage, securing the area with a locked gate, or both.
  • Ensure that contaminated materials on the ground are not transported into the poultry growing house or area.
  • Provide the following items to anyone entering or leaving any area where poultry are kept:
    • Footbaths and foot mats with disinfectant;
    • Boot washing and disinfectant station; and
    • Footwear change or foot covers.
  • Cover and secure feed to prevent wild birds, rodents, or other animals from accessing it. 
  • Cover and properly contain used litter, or other disease-containing organic materials to prevent wild birds, rodents, or other animals from accessing them, and keep them from being blown around by the wind. 
  • Allow MDA to enter the premises during normal working hours to inspect your biosecurity and sanitation practices. Maintain a log of those who access egg and poultry houses.
  • Report any unusual or sudden increases in sick birds to the MDA Animal Health Program at 410-841-5810 or 410-841-5971. Also contact the USDA at 866-536-7593.
  • Read up about HPAI and biosecurity measures on the MDA website.

Commercial chicken growers, backyard flock owners can email questions about the outbreak to MD.Birdflu@maryland.gov. In addition, the USDA’s Defend the Flock website has information on ways to help mitigate the risk of avian influenza, including instructional videos, additional biosecurity measures, and photos that show the signs of illness. Please visit the department’s Avian Flu website for more information on avian influenza. 


ANNAPOLIS, Md. — The Maryland Department of Agriculture (MDA) is alerting all poultry growers, operators and owners to remain vigilant and enhance biosecurity practices now that highly pathogenic avian influenza (HPAI) has been confirmed in a commercial poultry flock in Delaware. “I want to stress that this confirmed case does not represent a public health concern or outbreak,” said Maryland Agriculture Secretary Joe Bartenfelder. “Avian influenza does not affect poultry meat or egg products, which remain safe to eat and handle.”

“As the ‘bird flu’ continues to spread across the United States and into our neighboring states, I urge both commercial and backyard flock owners to do everything possible to help prevent the spread of disease in our state, and the broader Delmarva region. The easiest way to do this is to practice good biosecurity and sanitation practices, and keep wild birds away from your flocks,” he said.  

Avian influenza is a highly contagious virus that affects poultry, like chickens, ducks, and turkeys along with some wild bird species such as ducks, geese, shorebirds, and raptors. It has appeared sporadically over the last several decades in bird populations throughout the globe. Wild birds can carry the virus without becoming sick, while domesticated birds can become very sick and die. Maryland continues to work with its federal and state partners on additional surveillance and testing in areas around the affected flock. 

Maryland growers should take the following extra steps to prevent flocks from becoming infected: 

  • Restrict access to poultry by posting “Restricted Access” signage, securing the area with a locked gate, or both.
  • Ensure that contaminated materials on the ground are not transported into the poultry growing house or area.
  • Provide the following items to anyone entering or leaving any area where poultry are kept:
    • Footbaths and foot mats with disinfectant;
    • Boot washing and disinfectant station;
    • Footwear change or foot covers.
  • Cover and secure feed to prevent wild birds, rodents, or other animals from accessing it. 
  • Cover and properly contain used litter, or other disease-containing organic materials to prevent wild birds, rodents, or other animals from accessing them, and keep them from being blown around by the wind.     
  • Allow MDA to enter the premises during normal working hours to inspect your biosecurity and sanitation practices. Keep and maintain a log of associates or employees that access houses. 
  • Report any unusual bird deaths or sudden increases in sick birds to the MDA Animal Health Program at 410-841-5810 or 410-841-5971. Also contact the USDA at 866-536-7593. 
  • Read up about HPAI and biosecurity measures on the MDA website.

Commercial chicken growers, backyard flock owners can email questions about the outbreak to MD.Birdflu@maryland.gov. In addition, the USDA’s Defend the Flock website has information on ways to help mitigate the risk of avian influenza, including instructional videos, additional biosecurity measures, and photos that show the signs of illness in birds. Please visit the department’s Avian Flu website for more information on avian influenza. 

Join the Conversation

4 Comments

  1. “The Maryland case comes one week after a HPAI positive in Delaware.”

    “Following the Delaware case, Maryland and its federal and state partners have greatly expanded their surveillance sampling and testing regimen to better protect the poultry industry on the Delmarva Peninsula. ”

    Duh!!!

    FJB!!!

Leave a comment

Your email address will not be published.