Rapid Analysis of Infections by Spectrometry of Exhaled Breath

Inclusion Criteria

• •Age ≥ 18y at start of study
• •One of the following diagnoses:
• •* De novo, refractory or relapsed AML/MDS receiving intensive chemotherapy
• •* De novo, refractory or relapsed ALL/T-lymphoblastic lymphoma receiving intensive chemotherapy
• •* Aplastic anemia requiring ATG therapy
• •* Any patient admitted for either autologous hematopoietic stem cell transplantation. Transplantation may not have been performed at time of enrolment.
• •* Any patient admitted with allogeneic hematopoietic stem cell transplantation within the last year, or planned during this admission.
• •Written informed consent obtained from the patient
• •Signs of active respiratory infection
• •If previously enrolled: incomplete clearance of all signs of respiratory infection (both clinically, microbiologically and radiologically).