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Table 4 Causes of fever persistence after initial empirical antibiotic in neutropenic patients

From: The strategy of antibiotic use in critically ill neutropenic patients

Infectious causes of persistent fever

Ā 

Inappropriate antibiotic dosing and concentration

Ā 

Clostridium difficile-induced diarrhea

Ā 

Antibiotic-resistant pathogen

Multidrug-resistant bacteria,

Mycobacteria,

Fastidious pathogens (e.g., Legionella, Mycoplasma, Chlamydia pneumoniae, Bartonella)

Ā 

Fungal infection

Molds: Aspergillus and zygomycetes

Yeasts: Candida and Cryptococcus

Ā 

Parasitic infection

e.g., Toxoplasma gondii

Ā 

Viral infection

e.g., herpesviruses (cytomegalovirus, Epstein-Barr virus, human herpesvirus 6, varicella-zoster virus, herpes simplex virus) parainfluenza virus, respiratory syncytial virus, influenza viruses.

Ā 

Persistent focus of infection (e.g., catheter)

Ā 

Uncontrolled infection (e.g., endocarditis or peritonitis)

Noninfectious causes of persistent fever

Ā 

Transfusion-related fever

Ā 
Ā 

Hemophagocytic lymphohistiocytosis

Ā 

Venous thrombosis

Ā 
Ā 

Drug- or transfusion-induced fever

Ā 

Graft-versus-host disease

Ā 
Ā 

Underlying malignancy

Ā 
Ā 

Pancreatitis

Ā