The R-proteins.
D000818:Animals; D000907:Antibodies, Bacterial / Q000276:immunology*; D000942:Antigens, Bacterial / Q000032:analysis / Q000276:immunology*; D001426:Bacterial Proteins / Q000032:analysis / Q000276:immunology*; D006801:Humans; D007116:Immunization, Passive; D007074:Immunoglobulin G / Q000276:immunology; D007231:Infant, Newborn; D051379:Mice; D018805:Sepsis / Q000382:microbiology; D013290:Streptococcal Infections / Q000276:immunology* / Q000382:microbiology; D013292:Streptococcus agalactiae / Q000032:analysis / Q000276:immunology* / Q000302:isolation & purification
D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D001426:Bacterial Proteins; D007074:Immunoglobulin G