A highly contagious acute respiratory disease spread by close contact causing larngitis, [[Trachea Inflammatory - Pathology#Infectious causes of tracheitis|tracheitis]], [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchitis]] and in some cases a [[Nasal Cavity Inflammatory - Pathology#Rhinitis|rhinitis]]. | A highly contagious acute respiratory disease spread by close contact causing larngitis, [[Trachea Inflammatory - Pathology#Infectious causes of tracheitis|tracheitis]], [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|bronchitis]] and in some cases a [[Nasal Cavity Inflammatory - Pathology#Rhinitis|rhinitis]]. |