CD4 and HIV infectious disease: A 21-year-old male Mexican with HIV infection with a basal HIV viral load of 70,800 copies/mL, CD4+ T cells of 6 cells/μL (3%) and CD8+ T cells of 88 cells/μL (46%), who started ART (abacavir/lamivudine/dolutegravir) one-month prior symptoms, came to us with 12 days of clinical evolution and complaining about a lower lip ulceration, fever, chills, diarrhea (Bristol Stool Scale: type 5), myalgias, progressive dyspnea, and generalized weakness.