T-VEC works through a multi-step process: 1. Injection: It is directly injected into the tumor. 2. Replication: The virus replicates within the cancer cells. 3. Lysis: Infected cancer cells burst and die, releasing new viral particles. 4. Immune Activation: The release of GM-CSF and other tumor antigens stimulates an immune response, helping the body target cancer cells throughout the body.
