Spotlight on avian pathology: infectious bronchitis virus

Area of Science:

• Veterinary Virology
• Avian Pathology
• Poultry Health Management

Background:

• Infectious bronchitis is a highly contagious viral disease impacting domestic chickens of all ages.
• The virus affects multiple organ systems, including respiratory, renal, and reproductive tracts.
• Secondary bacterial infections frequently complicate IBV cases, increasing economic losses and welfare concerns.

Discussion:

• The global prevalence of numerous genotypic and serotypic variants of infectious bronchitis virus (IBV) complicates accurate diagnosis.
• The diversity of IBV strains presents significant challenges for developing effective and broadly protective control strategies.
• Current vaccination protocols rely on live-attenuated and inactivated vaccines, which are essential for managing IBV.

Key Insights:

• Effective control of infectious bronchitis in poultry necessitates comprehensive vaccination strategies.
• The wide array of IBV variants poses a continuous diagnostic and therapeutic challenge.
• Traditional vaccine approaches remain the cornerstone of IBV infection management.

Outlook:

• Future research should focus on understanding IBV variant evolution to improve vaccine efficacy.
• Developing novel vaccine platforms, such as vectored vaccines, that match the effectiveness of traditional vaccines is a critical goal.
• Enhanced diagnostic tools are needed to keep pace with IBV genetic diversity.