Fluorescent Antibody Study of the Gram-Positive Anaerobic Cocci

AUTOR(ES)

Porschen, Richard K.

RESUMO

Fluorescent antibody conjugates were prepared from five species of anaerobic cocci commonly isolated from human infections. When tested with homologous and heterologous cells these conjugates were found to be highly specific. There was no evidence of a common genus antigen. Peptococcus magnus conjugates detected a species-specific antigen; cross-reactions with Peptostreptococcus anaerobius were readily eliminated by absorption. The conjugates from Peptococcus asaccharolyticus, Peptococcus prevotii, Peptostreptococcus, anaerobius, and Peptostreptococcus intermedius displayed a high degree of strain specificity. Occasional cross-reactions were detected with homologous strains, suggesting the presence of common antigens, but no attempt was made to determine the number of different serotypes in these species.

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