Clinical Manifestations	Laboratory Test Results
Common •Sore throat •Dysphagia •Fever •Chills •Cervical lymphadenopathy •Fatigue •Headache Less Common •Hepatomegaly •Elevated transaminases •Splenomegaly •Hemolytic anemia •Thrombocytopenia	•WBC count: 10–30 × 109/L (or higher) because of an absolute lymphocytosis •Reactive lymphocyte morphology •Positive heterophile antibody test •Positive EBV-specific antigen & antibody tests