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Sickle-Cell Treatment Created With Gene Editing Wins U.K. Approval

Stamping Bar Codes on Cells to Solve Medical Mysteries

Multiple myeloma is a rare cancer that seems to strike at random.

Immunity to the Coronavirus May Persist for Years, Scientists Find

Researchers Halt Trial of Promising Sickle Cell Treatment

Timothy Ray Brown, First Patient Cured of H.I.V., Dies at 54

A Woman May Have Been Cured of H.I.V. Without Medical Treatment

Dr. John Hansen, Who Made Marrow Transplants Safer, Dies at 76