26th April 2024

A 20-year-old university student presents with a 10-day history of sore throat, fever, and fatigue.

A 20-year-old university student presents with a 10-day history of sore throat, fever, and fatigue. He also reports a loss of appetite and mild abdominal discomfort. On examination, he has swollen tonsils with exudate, cervical lymphadenopathy, and mild splenomegaly.

Investigations:

Full blood count: Lymphocytosis with atypical lymphocytes

Which is the most likely diagnosis?