Impact of air filtration on nosocomial aspergillus infections: Unique risk of bone marrow transplant recipients☆

Abstract Bone marrow transplant recipients were found to have a 10-fold greater incidence of nosocomial Aspergillus infection than other immunocompromised patient populations (p 3 , which was significantly lower than in all other areas of the hospital (p ≤0.03). No cases of nosocomial Aspergillus infection developed in 39 bone marrow transplant recipients who resided in this environment throughout their transplantation period compared with 14 cases of nosocomial Aspergillus infection in 74 bone marrow transplant recipients who were housed elsewhere (p