title: Contributions to further sero-variants of Listeria monocytogenes.
abstract: The authors report on the isolation of 13 Listeria monocytogenes strains of healthy human subjects which, within serogroup 4, contain at least four variants of known Listeria antigens, but wound not fit into the grouping system that has been in use.
mesh_terms: D006801:Humans; D008089:Listeria monocytogenes / Q000145:classification* / Q000302:isolation & purification; D012703:Serotyping / Q000379:methods; D013045:Species Specificity