The lack of cellular cooperation in the immune response to E. coli 0127.

Animals Antibody Formation Antibody-Producing Cells Antigens, Bacterial B-Lymphocytes/immunology Cell Adhesion Cell Separation Cells, Cultured Erythrocytes/immunology Escherichia coli/immunology Hemagglutination Inhibition Tests Hemagglutination Tests Hemolytic Plaque Technique Immunoglobulin M/analysis Lipopolysaccharides/immunology Lymphocytes/immunology Male Mice Sheep/immunology Spleen/cytology T-Lymphocytes/immunology Thymus Gland/abnormalities

Antigens, Bacterial Immunoglobulin M Lipopolysaccharides