NCIt 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.;