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 ...

Respiratory illnesses in chickens often come with other symptoms, including sneezing, coughing, wheezing, nasal discharge, or ...

A highly pathogenic avian influenza (HPAI ... with high levels in the respiratory system. In a prior study, the researchers had infected ferrets with a bovine H5N1 virus and, although it caused ...

A teenager in Canada, hospitalized with the country's first case of the H5N1 bird flu, is in critical condition. Health ...

A teenager who tested positive for avian flu is in critical condition with acute respiratory distress according to Provincial ...

Bonnie Henry said the teen is suffering from severe respiratory distress. On Wednesday, the Public Health Agency of Canada confirmed it as avian flu — the first case of its kind in Canada.