Scans showed Stacy Erholtz “had tumors growing all over her body.
One grew on her forehead, destroying a bone in her skull and pushing on her brain. Her children named it Evan, her doctor said. Cancer had infiltrated her bone marrow.” But then, in a clinical trial at the Mayo Clinic, Erholtz was injected with enough measles virus to inoculate 10 million people. Within 36 hours, Evan was shrinking. Over the next few weeks, Evan disappeared, and so did the other tumors in her body.

+ NYT: Advocating pill, U.S. signals shift to prevent AIDS.