Comparing group differences in terms of antimicrobial prophylaxis in post-chemotherapy NF in leukemias in our study did not show statistically significant differences in CRP and PCT at fever presentation, MDBIs, MDFIs, presence of gram-negative and gram-positive bacterial isolates, requiring modification of antibiotic treatments during NF, medical complications in the first 3 and 5 days of NF, or fever duration. Here, CRP is linked to leukemia.