According to Jo Oliver: Cord blood cells are taken at birth, before the infant is exposed to any environmental factors. It is also advantageous because the cells are younger and smarter. Once the cord blood is re-infused into the person, the cells migrate to wherever the person is injured and immediately go to work to help repair any damaged cells or tissue.
The umbilical cord blood collection process is simple and painless for the infant. A syringe is placed in the umbilical cord that runs from mother to infant. The blood is then sent to whatever blood bank the parent has opted to use. Sadly, the collection and storage cost is still out of reach for many families. For more read: Breakthrough Cord Blood Infusion Reverses Cerebral Palsy in Chloe Levine