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Updated: Jun 21, 2026

Capsular Serotyping of Streptococcus pneumoniae Using the Quellung Reaction
Published on: February 24, 2014
Comparative study on two methods for serotyping of Staphylococcus aureus: the Pillet method and the Oeding method.
Abstract:
Using two techniques (agglutination and immunoprecipitation), the authors have observed that: -Pillet's strain CK9 and Oeding's strains 670 and 17A are very similar; -antigen 9 is also present in the three strains; the same relation is found in wild strains. Using agglutination and immunoprecipitation, there is a cross reactivity between h1 factor serum, serum 9 and strains CK9, 670 and 17A. A precipitation line involving strain CK9 and serum CK9 is described in the Pillet system. Finally, there is a strong presumption that Oeding's h1 antigen and Pillet's antigen 9 are identical.
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