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Medical Definition of Cowpox virus
1. A species of orthopoxvirus that is the aetiologic agent of cowpox. It is closely related to but antigenically different from vaccina virus. (12 Dec 1998)
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1. A species of orthopoxvirus that is the aetiologic agent of cowpox. It is closely related to but antigenically different from vaccina virus. (12 Dec 1998)