title: MUTATIONS TO PENICILLIN RESISTANCE IN THE ENTEROBACTERIACEAE THAT AFFECT SENSITIVITY TO SERUM AND VIRULENCE FOR THE MOUSE.
mesh_terms: D000667:Ampicillin; D000818:Animals; D000937:Antigen-Antibody Reactions; D004755:Enterobacteriaceae; D004926:Escherichia coli; D051379:Mice; D009154:Mutation; D010400:Penicillin G; D010403:Penicillin Resistance; D010600:Pharmacology; D012106:Research; D012475:Salmonella; D012477:Salmonella enteritidis; D012486:Salmonella typhimurium; D014774:Virulence
chemical_list: D000667:Ampicillin; D010400:Penicillin G
keywords: AMPICILLIN; ANTIGEN-ANTIBODY REACTIONS; ESCHERICHIA COLI; EXPERIMENTAL LAB STUDY; MICE; MUTATION; PENICILLIN G; PENICILLIN RESISTANCE; PHARMACOLOGY; SALMONELLA; SALMONELLA TYPHIMURIUM; VIRULENCE