title: Virulence of nosocomial isolates of Serratia marcescens for NMRI mice: correlation with O-antigens O6 and O14.
abstract: Nosocomially significant Serratia marcescens strains with O-antigens O6 or O14, or the serogroup complex O6/O14, proved somewhat more virulent for juvenile NMRI mice following intraperitoneal injection, than strains carrying other O-antigens. There was no correlation between virulence and extent of casein proteolytic activity or resistance against fresh normal human serum.
mesh_terms: D000818:Animals; D000941:Antigens; D001770:Blood Bactericidal Activity; D002364:Caseins / Q000378:metabolism; D003428:Cross Infection / Q000382:microbiology; D004756:Enterobacteriaceae Infections / Q000382:microbiology; D005260:Female; D006801:Humans; D007928:Lethal Dose 50; D008297:Male; D051379:Mice; D019081:O Antigens; D012703:Serotyping; D012706:Serratia marcescens / Q000145:classification / Q000276:immunology / Q000472:pathogenicity*
chemical_list: D000941:Antigens; D002364:Caseins; D019081:O Antigens