Normal Blood Value (for women): Red blood cells 4.2-5.4 million/uL Hemoglobin 12-16 g/dL Hematocrit 37-47% White Blood Cell 5000-10,000 A female client presents at the clinic complaining of fever and chills. She admits she didn't get a flu vaccine and is a teacher who has been around a lot of sick children. Her lab work showed the following results: RBC count of 5 million hemoglobin level of 17 g/dL, a hematocrit value of 49% WBC count of 13,000/mm3 and an abnormal WBC differential. The client's medical history suggest which condition?