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J Clin Microbiol. 1979 July; 10(1): 8-13

O antigen grouping of Morganella morganii (Proteus morganii) by slide agglutination.

ABSTRACT

Antisera were prepared against Morganella morganii (Proteus morganii) type strains from the scheme described by Rauss et al. (Acta Microbiol. Acad. Sci. Hung. 22:315--321, 1975) and Raus and Vörös (Acta Microbiol. Acad. Sci. Hung. 6:233--248, 1959; Acta Microbiol. Acad. Sci. Hung. 14:195--198, 1967). The specificities of the somatic (O) antigens were studied using the passive hemagglutination and slide agglutination techniques. Previously unreported interstrain relations were observed, and O groups were provisionally defined on the basis of related strains. Of 143 isolates, collected mostly from two hospitals, 96% could be placed in one or another of the O groups. Forty-eight percent belonged to O group 1 and most of these were of two serotypes O1ab, 2 (20%) and O1ad, 2 (12%).