The present invention relates to a novel Modified Vaccinia Ankara (MVA) related virus. The present invention also relates to a method for culturing said MVA related virus and to a method for producing said MVA related virus. Further, the present invention relates to a pharmaceutical composition comprising said MVA related virus and one or more pharmaceutical acceptable excipient(s), diluent(s), and/or carrier(s). Furthermore, the present invention relates to a vaccine comprising said MVA related virus. In addition, the present invention relates to said MVA related virus for use in medicine.

The present invention relates to a novel Modified Vaccinia Ankara (MVA) related virus. The present invention also relates to a method for culturing said MVA related virus and to a method for producing said MVA related virus. Further, the present invention relates to a pharmaceutical composition comprising said MVA related virus and one or more pharmaceutical acceptable excipient(s), diluent(s), and/or carrier(s). Furthermore, the present invention relates to a vaccine comprising said MVA related virus. In addition, the present invention relates to said MVA related virus for use in medicine.

The attenuated vaccinia virus strain KVAC103 was obtained by subculturing a vaccinia virus strain 103 times in VERO cells. The attenuated vaccinia virus strain KVAC103 has significantly low toxicity, shows reduced skin lesions, and, at the same time, induces effectively immune responses to poxvirus. Thus, it can be used as a poxvirus vaccine while causing less side effects.