Allergy and infection of the respiratory tract. Differential diagnosis.
D001249:Asthma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D006967:Hypersensitivity; D007154:Immune System Diseases; D012137:Respiratory System; D012141:Respiratory Tract Infections / Q000175:diagnosis*
ASTHMA/diagnosis; RESPIRATORY TRACT INFECTIONS/diagnosis