title: REACTIVATION OF PROTEASE-INACTIVATED VACCINIA VIRUS BY HOMOLOGOUS AND MUTANT VIRUSES.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D010450:Endopeptidases; D005321:Extraembryonic Membranes; D009154:Mutation; D010447:Peptide Hydrolases; D012106:Research; D046509:Tissue Culture Techniques; D014466:Ultraviolet Rays; D014616:Vaccinia virus; D014776:Virus Cultivation
chemical_list: D010450:Endopeptidases; D010447:Peptide Hydrolases
keywords: CHICK EMBRYO; EXPERIMENTAL LAB STUDY; FETAL MEMBRANES; MUTATION; PEPTIDE HYDROLASES; TISSUE CULTURE; ULTRAVIOLET RAYS; VACCINIA VIRUS; VIRUS CULTIVATION