The air sac system is a vital part of the avian respiratory system. Air sacs are thin-walled structures, one to two cell layers thick, that extend throughout the body cavity and into the wing and ...

The State Key Laboratory for Emerging Infectious Diseases at the University of Hong Kong (HKU) and the InnoHK Center for ...

The highly pathogenic H5N1 avian influenza virus ... capable of causing severe damage beyond the respiratory system. A groundbreaking study conducted by researchers at the University of Pittsburgh ...

it could mean their respiratory system is struggling. A nagging cough—it doesn’t matter if it’s dry or phlegmy—is never normal for dogs. Bird flu can attack the lungs and lead to ...