system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 15-year-old high school rugby player presents to your clinic with a sore throat. He reports that he started feeling fatigued along with body aches about a week ago. His vitals and physical are normal except for an exudative pharynx and an enlarged spleen. Monospot test comes back positive and the student is told not to participate in contact sports for a month. What is the most likely causative agent and which immune cell does it affect?
assistant
Epstein-Barr virus; B-cells