CRP and clostridium difficile infection: CDI: Clostridioides difficile infection; WBC: White blood cell; CRP: C-reactive protein; AMPC: Amoxicillin; CAM: Clarithromycin; FRPM: Faropenem; FOM: Fosfomycin; AMPC/CVA: Amoxicillin/clavulanic acid; CDTR-PI: Cefditoren pivoxil; ABPC: Ampicillin; CLDM: Clindamycin; AZM: Azithromycin; CTRX: Ceftriaxone; CCL: Cefaclor; VCM: Vancomycin; MNZ: Metronidazole