title: More on cross-reactions of Pneumococci and Klebsiella.
abstract: Earlier studies are extended to the higher-numbered K-types of Klebsiella, several of which may now be fitted into the previously found groups. Additional correlations between chemical structure and serological specificity are given, not only among the higher K-types, but also for several which were previously uninterpretable because structures were not known at the time. K1, K5, K6, K7 and K56 are shown to form a related group, although the reasons for their cross-reactivities are not always the same.
mesh_terms: D000907:Antibodies, Bacterial; D011232:Chemical Precipitation; D003429:Cross Reactions; D007106:Immune Sera; D007709:Klebsiella / Q000276:immunology*; D008070:Lipopolysaccharides / Q000276:immunology; D011135:Polysaccharides, Bacterial / Q000276:immunology; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D007106:Immune Sera; D008070:Lipopolysaccharides; D011135:Polysaccharides, Bacterial