Bone marrow CD34 cells contain hematopoietic stem and progenitor cells and are known to differentiate into all the various blood cell types Lonza bone marrow CD34 cells are isolated from bone marrow mononuclear cells (MNC) by positive immunomagnetic separation and are guaranteed to have a purity of 90% They are guaranteed to contain either 100 000 300 000 500 000 1 million or 2 million viable cells per ampoule depending on the product ordered HIV-1 hepatitis C and hepatitis B are not detected for all donors and/or cell lots A Certificate of Analysis is provided for each cell lot purchased Fresh bone marrow CD34 cells are offered in various packaging sizes and require a minimum order quantity of two vials per donor Please contact Customer Service for information on sizes and pricing for fresh cells