Salmonella gallinarum - Salmonella enteritidis relationship in rabbits.

The polysaccharide of S. gallinarum, sharing factors 9.12 with the Salmonellae of group D. cross-reacts with one of two serological determinants, present in the polysaccharide of S. enteritidis, and is different from the determinant responsible for the cross-reaction of S. enteritidis and S. typhy polysaccharides. The absorption of anti S. gallinarum sera with proteins from S. enteritidis removed all the antibodies induced for the homologous antigens; in contrast, the absorption of the anti S. enteritidis sera with proteins from S. gallinarum removed all the antigens common to S. gallinarum and S. enteritidis, leaving for reaction the antibodies induced to specific antigens of S. enteritidis.