The levels of CRP (Fig. 1A), PCT (Fig. 1B) and serum ferritin (Fig. 1C) within 24 h after admision are dpicted. BSI was associated with significantly higher CRP (62.80 versus 34.30 mg/L, p < 0.001) and PCT (0.38 versus 0.12 ng/mL, p < 0.001) levels, but significantly lower ferritin level (341.50 versus 535.40 mg/L, p < 0.05) compared with the FUO patients without BSI. The gene discussed is CRP; the disease is bathing suit ichthyosis.