ABSTRACT
In the study of P. aeruginosa cultures, serogroup O11, strains agglutinated simultaneously by factor sera 11b and 11c have been detected. In experiments on cross agglutination and agglutinin adsorption the antigenic structure of these strains, viz. 11a, 11b and 11c, has been determined.
Subject(s)
Antigens, Bacterial/analysis , Pseudomonas aeruginosa/immunology , Adsorption , Agglutination Tests , Cross Reactions/immunology , Humans , O Antigens , Pseudomonas aeruginosa/classification , Pseudomonas aeruginosa/isolation & purification , SerotypingABSTRACT
The serological typing of 708 P. aeruginosa strains made it possible to determine serogroups in 97.9% of cultures. Serogroups O2 and O6 were the most prevalent (33.8% and 2.5% respectively); serotypes O1, O3 and O11 also occurred rather frequently (about 10%); O4, O7 and O9 were rare (3-8%), serotypes O10 and O12, very rare (less than 1%). The prevalence of P. aeruginosa strains O2 and O6 among the clinical strains was shown over a period of 10 years, serogroup O2 always playing the leading role. In serogroups, the predominance of strains with a definite combination of partial antigen was established; strains with the antigenic structure not described in the International Scheme of the Structure of O-Antigens were detected.