Definition

A vaccine consisting of modified vaccinia Ankara-Bavarian Nordic (MVA-BN), a live, attenuated, non-replicating, proprietary version of the MVA virus, used for the prevention of smallpox and monkeypox, with potential antineoplastic activity. Upon intratumoral administration, MVA-BN smallpox vaccine may induce both cellular and humoral immune responses, which may lead to tumor cell lysis.