USDA Approved Expanded Poultry Vaccine Label

The U.S. Department of Agriculture has authorized an expanded label for the Poulvac Bron GA08 vaccine for chickens.

Updated on Oct. 9, 2026 in Pet Health

USDA Approved Expanded Poultry Vaccine Label

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The U.S. Department of Agriculture recently granted Zoetis an expanded label for its Poulvac Bron GA08 vaccine. This product now includes protection against the DMV/1639 infectious bronchitis strain, which has affected poultry flocks across the country since 2020.

Why it matters

This approval directly addresses the prevalence of the DMV/1639 strain, which is currently the most dominant field variant of infectious bronchitis in U.S. poultry. By expanding the vaccine, producers now have a tool to manage the clinical signs associated with this persistent virus.

The Poulvac Bron GA08 vaccine is approved for administration to healthy chickens starting at one day of age. The treatment can be applied through either coarse spray or oral droplet methods.

The players

Zoetis

Zoetis is a global animal health company that develops, manufactures, and markets a wide range of veterinary vaccines and medicines.

U.S. Department of Agriculture

The U.S. Department of Agriculture is the federal executive department responsible for developing and executing laws related to farming, forestry, and food.

The details

The expanded vaccine stimulates immunity that helps poultry respond to both the Georgia 2008 and DMV/1639 variants of infectious bronchitis. Producers may begin incorporating this vaccine into their spring vaccination programming immediately.

The DMV/1639 strain began impacting poultry flocks in the United States in 2020.
The U.S. Department of Agriculture granted the expanded label approval on October 8, 2026.
The vaccine is available for immediate use.
The product is expected to be utilized for spring vaccination programming.

Culture Shift

This development marks a shift in agricultural disease management as producers adapt to the ongoing evolution of viral threats in poultry flocks. The updated vaccine reflects a wider trend of agricultural entities updating immunization strategies to combat long-standing field strains.

Commercial poultry producers can now secure this vaccine to manage DMV/1639 infections in their flocks starting this spring. This change allows for more precise vaccination protocols, potentially reducing losses associated with the predominant infectious bronchitis strain.

The takeaway

Producers should evaluate their current vaccination protocols to see if this new label expansion fits their operational needs for the upcoming season. Integrating this vaccine may provide a more effective defense against the most common infectious bronchitis strain currently circulating in the industry.