A 55-year-old man with history of end-stage kidney disease (ESKD) owing to diabetic nephropathy status post deceased donor kidney transplant 4 years ago presented to the clinic with 1 month of fatigue and poor appetite. At symptom onset, the patient had upper respiratory infection symptoms, which spontaneously resolved, and he was now without fever, cough, shortness of breath, headache, or visual changes. He denied recent travel or sick contacts but reported a 20 pack-year cigarette smoking history.