IBR is best described as a viral disease affecting which body system?

IBR is best described as a viral disease affecting which body system?

• A. Respiratory system
• B. Digestive system
• C. Nervous system
• D. Muscular system

Answer: (A)

IBR stands for Infectious Bovine Rhinotracheitis, a disease caused by bovine herpesvirus 1. The term rhinotracheitis directly points to the nose and trachea, so the virus primarily targets the upper respiratory tract. It replicates in the mucosal lining of the nasal passages and trachea, leading to symptoms such as nasal discharge, coughing, and conjunctivitis. While the virus can cause abortion or, less commonly, neurologic signs in some cases, the defining and most prominent involvement is the respiratory system, making it the best description. The digestive, nervous, and muscular systems aren’t the primary targets of this disease.

IBR stands for Infectious Bovine Rhinotracheitis, a disease caused by bovine herpesvirus 1. The term rhinotracheitis directly points to the nose and trachea, so the virus primarily targets the upper respiratory tract. It replicates in the mucosal lining of the nasal passages and trachea, leading to symptoms such as nasal discharge, coughing, and conjunctivitis. While the virus can cause abortion or, less commonly, neurologic signs in some cases, the defining and most prominent involvement is the respiratory system, making it the best description. The digestive, nervous, and muscular systems aren’t the primary targets of this disease.