What infectious prophylaxis would you recommend in an infant with Wiskott-Aldrich syndrome during donor search and pre-transplant?

In infants with Wiskott-Aldrich syndrome, the degree of immune deficiency is variable and should be evaluated with a comprehensive assessment of both T-cell and B-cell immunity. Current testing typically includes lymphocyte subsets (CD3, CD4, CD8, CD19/20, NK cells), quantitative immunoglobulins (Ig...