Protection from tumor challenge of mice vaccinated with mature DCs infected with rVV-Id or rVV-Id-LAMP1. Mice were vaccinated once with 0.3 × 10⁶ DCs infected with rVV-Id (▴), rVV-Id-LAMP1 (▪), and rVV-S65L (○) as negative control. After 14 days, mice were challenged with 1000 viable 38C13 tumor cells subcutaneously and followed for survival.