National Institute of Allergy and Infectious Diseases (NIAID)
Age
0–21
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
Males or females age \> 120 days and \< 22 years at any participating site
Have at least one of the following conditions associated with a known high incidence of IFI: hematopoietic stem cell transplantation (HSCT), aplastic anemia, bone marrow failure, primary or acquired immune deficiency, or malignancy
New (last 96 hours) radiographic evidence of at least one of the following: at least one nodular lesion greater than or equal to 5 mm in size, a wedge-shaped and segmental or lobar consolidation, a cavitary lesion, a lesion with a halo sign, a lesion with a reverse halo sign, or a lesion with an air crescent sign
Prolonged neutropenia (absolute neutrophil count \< 500 cells/µl for a period of ≥ 5 consecutive days) in 30 days prior to and including the day of qualifying chest MRI or CT scan date OR currently receiving systemic therapy for acute or chronic graft-versus-host disease (GVHD) OR presence of neutrophil dysfunction because of underlying acquired or primary immune deficiency (e.g. chronic granulomatous disease) on the date of the qualifying chest MRI or CT scan
Subject consent or parental/guardian permission (informed consent) and if appropriate, child assent
You may not be if
Weight \<3 kg, so as to not exceed 3 ml/kg in a single blood draw
