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Cord Blood |
How long do frozen cord blood cells remain viable?
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 10 years. Units stored for up to 10 years have been used in transplants and have performed as well as new ones. Thus, we do not expect any significant deterioration in the quality of stored cord blood units in the foreseeable future.
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