CAR-T cell therapy has emerged as a new and effective way to treat a variety of cancers via the body’s own immune system. Now, researchers are combining CAR-T cell therapy with cancer-killing viruses to create an even more potent treatment against solid cancer tumors.

CAR-T cell therapy works by taking T cells, immune system cells that are specialized to target foreign antigens, from a patient and engineering them to specifically target and attack cancer cell antigens, effectively turning the body’s immune system against malignant cells when the T cells are returned to the patient’s body.