• 小兒過敏三部曲：atopic dermatitis, allergic rhinitis, asthma
• T cell differentiation

• Types of hypersensitivity

Types of immunityTypes of immunityIntroduction

Definition

• Chronic inflam disorder w/ airway hyperresponsiveness + variable airflow obstruction
  • cf. COPD: persistent airflow obstruction

Clinical presentation

• 喘、咳、胸悶、wheeze
  • cf. COPD: 喘、咳、痰、AE

Comorbidities

Risk factors for exacerbations

Diagnosis

Typical variable respiratory symptoms

Variable expiratory airflow limitation

• Positive bronchodilator responsiveness(reversibility)