“…An oncolytic virus is a high-efficiency tumor treatment method that can specifically infect and crack tumor cells 1–4 with many advantages, such as improving the immune microenvironment of the tumor and not being restricted by drug resistance. 5,6 So far, four oncolytic virus products, Delytact, Lmlygic, Oncorine, and Virgo, have been approved for intratumoral administration for tumor treatment.…”