The antigenicity and immunogenicity of the intracellular and extracellular forms of vaccinia virus. I: The production of high-titre vaccinia extracellular virus and its antigenicity after inactivation.

The antigenicity and immunogenicity of the intracellular and extracellular forms of vaccinia virus. I: The production of high-titre vaccinia extracellular virus and its antigenicity after inactivation.