Swollen lymph nodes

An adult Latino male patient that has been admitted to the emergency room has the following recorded on their electronic medical chart: 100.7℉ oral temperature (normal = 99 ℉ to 97℉), fever, headache, swollen lymph nodes, tachycardia (increased heart rate), and a white blood cell count of 13,000 per microliter (normal = 4, 500 to 11, 000 per microliter). What is wrong with the patient? What is the possible cause of the symptoms that the patient is experiencing? Explain your answer using the information recorded on the medical chart, etc.