title: Protective properties and haemagglutinins in serum from humans and in serum from mice injected with a new polyvalent Pseudomonas vaccine.
abstract: Mice given single injections of a polyvalent pseudomonas vaccine produced anti-pseudomonas haemagglutinins against the 16 component immunogens of the multivalent vaccine. Mice passively immunized with sera from vaccinated mice were protected against lethal challenge by 8/10 strains of Ps. aeruginosa of homologous serotype. Protection by the serum was inversely proportional to the virulence of the challenge strains. Anti-pseudomonas haemagglutinins were always present in sera which passively protected mice against pseudomonas infection. Low levels of anti-pseudomonas haemagglutinins were present in some sera which failed to passively immunize mice against pseudomonas infection. Anti-pseudomonas haemagglutinins and antibodies involved in passive protection were mainly in the IgM fractions of mouse serum. Control human sera contained anti-pseudomonas haemagglutinins against most serotypes of Ps. aeruginosa. Sera from patients with burns contained high levels of anti-pseudomonas haemagglutinins against some but not all serotypes of Ps. aeruginosa. Sera from both controls and patients with burns passively protected mice against pseudomonas infection.
mesh_terms: D000373:Agglutinins / Q000032:analysis*; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D000917:Antibody Formation; D001428:Bacterial Vaccines; D002056:Burns / Q000276:immunology; D003429:Cross Reactions; D006386:Hemagglutination Tests; D006388:Hemagglutinins / Q000032:analysis*; D006801:Humans; D007112:Immunity, Maternally-Acquired; D008623:Mercaptoethanol; D051379:Mice; D011552:Pseudomonas Infections / Q000517:prevention & control*; D011550:Pseudomonas aeruginosa / Q000276:immunology*; D014774:Virulence
chemical_list: D000373:Agglutinins; D000907:Antibodies, Bacterial; D001428:Bacterial Vaccines; D006388:Hemagglutinins; D008623:Mercaptoethanol