How long do frozen cord blood cells
It is not known how long cord blood can be stored in liquid nitrogen and its cells remain viable. NCBP's earliest units were stored in 1993. In checking the viability of cells in cord blood units that will not be used for transplantation, we have not detected any deterioration in the quality of the cells in cord blood units stored for up to 16 years. Units stored for up to 13 years have been used in transplants and the outcomes have been similar to those of newly collected units. Thus, we are not aware of any reason to expect any significant deterioration in the quality of stored cord blood units.
Katherine Marguerite Sutter, above and below, on her
second and third re-birthdays (transplant "birthday").