Scientists have developed a new low-toxicity treatment for sickle cell anemia which appears to flat out cure the disease in 9 out of 10 adults. A similar, much more toxic, treatment has been available for children for some time, but the protocol was so nasty it either killed the adults outright or some time later gave them a nasty disease which would do the deed. The headline mentions stem cells, but it doesn't seem to make up a big part of the cure.