title: An acellular vaccine from Pseudomonas aeruginosa: homologous and crossed protection between serogroups according to Habs' classification.
abstract: Homologous and cross-reactions were studied in 16 strains of Pseudomonas aeruginosa belonging to different O serogroups according to Habs' classification. By slide agglutination, cross-reactions were rare between the strains of two or three serogroups: O2, O5 and O16; O1 and O9; O7 and O8; O13 and O14. Experiments of cross-protection have been performed in mice inoculated with acellular vaccines prepared from the 16 studied strains. A high homologous protection was observed with all the 16 strains, which is in favour of existence of an O serogroup-specific immunity. However, it exists some cross-protective reactions between the serogroups. This cross-protection allows to reduce the numbers of strains for a polyvalent vaccine. A classification of P. aeruginosa into 8 classes of related serogroups (A to H) is proposed which could be a basis for an antigenic classification of P. aeruginosa.
mesh_terms: D000372:Agglutination Tests; D000818:Animals; D000942:Antigens, Bacterial / Q000276:immunology*; D001428:Bacterial Vaccines / Q000276:immunology*; D003429:Cross Reactions; D000939:Epitopes; D005260:Female; D051379:Mice; D011552:Pseudomonas Infections / Q000517:prevention & control*; D011550:Pseudomonas aeruginosa / Q000145:classification / Q000276:immunology*; D012703:Serotyping
chemical_list: D000942:Antigens, Bacterial; D001428:Bacterial Vaccines; D000939:Epitopes