World's First Sperm-Making Stem Cell Transplant

A man in his early 20s received the world's first sperm-making stem cell transplant, potentially groundbreaking for infertility treatment. The procedure, tested previously in animals, could help men with azoospermia. Doctors implanted the man's own stem cells into his reproductive system, aiming to restore his ability to produce sperm.

California Man on Verge of Being Declared Cured of HIV and Blood Cancer

A California man, Paul Edmonds, is on the verge of being declared cured of HIV and blood cancer after receiving a rare stem cell treatment. He is one of only five people to beat both diseases and the oldest to do so.