ECOG, Eastern Cooperative Oncology Group; ANC, absolute neutrophil count; GCSF, granulocyte colony stimulating factor; MDRO, multidrug-resistant organism; IV, intravenous; CVC, central venous catheter; ABSSSI, acute bacterial skin and skin structure infection; UTI, urinary tract infection; LRTI, lower respiratory tract infection; URTI, upper respiratory tract infection. The gene discussed is CSF3; the disease is bacterial urinary tract infection.