The antigenicity of ultra-violet irradiated vaccinia virus.

. . . . 534 Introduction Materials and methods Source of virus Infectivity titrations Irradiation Tests for inactivation of virus Bacterial content of irradiated material Immunization experiments Titre of control vaccine lymph in normal rabbits Experimental results Inactivating dose of irradiation Immunization of rabbits The influence of smaller doses of antigen Relation of irradiation to antigenicity Immunization of monkeys . . 6 The duration of immunity Preservation of the antigen Immunization with small amounts of living virus Confirmatory experiment Discussion Summary References