Subsequently, the patient experienced a progression of the infection on March 19, manifesting as fever with chills (maximum temperature 39 °C), elevated procalcitonin (PCT) (6.85 ng/mL), and decreased white blood cell count (WBC 1.0 × 109/L) and elevated C-reactive protein (CRP 62.62 mg/L). The gene discussed is CRP; the disease is infection.