title: The relationship between Neisseria meningitidis of serogroups Z1 and 29E.
abstract: Meningococci of serogroups Z1 and 29E were examined serologically and shown to be identical. These meningococci should be designated either as group Z1, which has priority, or preferably by a new designation forming a logical sequence with the currently accepted serogroups.
mesh_terms: D000939:Epitopes; D009345:Neisseria meningitidis / Q000145:classification* / Q000276:immunology; D011135:Polysaccharides, Bacterial / Q000032:analysis; D012703:Serotyping
chemical_list: D000939:Epitopes; D011135:Polysaccharides, Bacterial