5 Facts you should know about

Common variable immunodeficiency (CVID)

A group of disorders characterized by low levels of immunoglobulins (Ig)

Characterized by low levels of protective antibodies and an increased risk of infections

Patients with CVID may experience frequent bacterial and viral infections of the upper airway, sinuses, and lungs

Symptoms most commonly begin in early adulthood but can occur at any age

Acute lung infections can cause pneumonia, and long-term lung infections may cause bronchiectasis

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