<unk>  must be differentiated from other upper respiratory diseases and conditions that cause airway obstruction around the larynx, as well as those that present similar symptoms to influenza.
Differentiating croup from other diseases
Cough differential diagnosis
Differentiating otitis media from other diseases
Drug allergy differential diagnosis
Differentiating acute viral nasopharyngitis from other diseases
Allergy differential diagnosis
Rhinitis differential diagnosis
Silicosis differential diagnosis