Table 1.

Immune reconstitution after allogeneic HSCT.

Immune cells	Duration after allogeneic HSCT
Neutrophils >0.5 × 109/L	~14 days for PBSC, ~21 days for BM, and ~30 days for CB
NK cells	30–100 days
T cells	100 days
CD19+ B cells	1–2 years

PBSC, peripheral blood stems cells; BM, bone marrow; CB, cord blood; NK cells, natural killer cells.