Lin, a 5-year-11-month boy. He had a fever 20 days ago with no-obvious trigger and reached- the highest oral temperature of 40°C, no obvious cough, runny nose, vomiting. headache. dizziness, melena,...

Extracted text: Lin, a 5-year-11-month boy. He had a fever 20 days ago with no-obvious trigger and reached- the highest oral temperature of 40°C, no obvious cough, runny nose, vomiting. headache. dizziness, melena, urinary frequency, urgency, and dysuria but had nose bleeding. He visited a local hospital and underwent a blood-routine test: WBC 8.7X 10°/L. N 21%. RBC 3.36X 10/L. BPC 75 X 10°L, Hb 109g/L; peripheral blood smear shows: atypical cells 29%. The local hospital suspected "infectious mononucleosis", thus intravenous ganciclovir was given and his blood was extracted to check for anti-EBV antibody simultaneously. 1.- What are the main symptoms found on this patient? According to the patient's history and- presentations, what are the probable issues that you will need to think of?