title: New invasive Escherichia coli strain.
abstract: A new invasive Escherichia coli serogroup is described. Its O antigen is identical to the O antigen of Shigella boydii 3. We propose the designation of E. coli São Paulo for this serogroup until the situation of its O antigen is settled.
mesh_terms: D000942:Antigens, Bacterial / Q000032:analysis; D003968:Diarrhea, Infantile / Q000382:microbiology*; D004926:Escherichia coli / Q000145:classification / Q000276:immunology / Q000472:pathogenicity*; D004927:Escherichia coli Infections / Q000382:microbiology*; D006801:Humans; D007223:Infant; D012703:Serotyping; D009626:Terminology as Topic
chemical_list: D000942:Antigens, Bacterial