Unusual treatment shows promise for kids with brain tumors

In this Aug. 5, 2019 photo provided by Children’s Of Alabama, Dr. Gregory Friedman, a childhood cancer specialist, looks through a microscope at a laboratory in Birmingham, Ala. Friedman is leading a study to treat a deadly type of childhood cancer with a treatment that involves infusing viruses directly into the brain to spur an immune system response to the cancerous cells.