Clinical Research Directory

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 Exclusion Criteria: * Hematological disease beyond the specified inclusion criteria * Signs of active respiratory infection * If previously enrolled: incomplete clearance of all signs of respiratory infection (both clinically, microbiologically and radiologically).