- Viral Infections
 - Bacterial Infections
 - 
	Infections in the immunocompromised host
	
- 
		ASARI
		
Amplification and Selection of Antimicrobial Resistance in the Intestine (ASARI)
 - 
		CoCoNut
		
Cologne Cohort of Neutropenic Patients
 - 
		ISI - Improving Diagnosis of Severe Infections in Immunocompromised Patients
		
Improving Diagnosis of Severe Infections in Immunocompromised Patients (ISI)
 
 - 
		ASARI
		
 - Invasive fungal infections
 - Gastrointestinal infections
 - Parasitic diseases