mechanisms of nonspecific elicitation of anti-sheep erythrocyte ( srbc ) hemolytic antibody plaqueforming cells ( pfc ) in mouse spleens with an injection of bacterial endotoxin ( lipopolysaccharide ( lps ) ) were studied in comparison with the genesis of naturally occurring `` '' background '' '' pfc in normal mouse spleens and of rapidly arising pfc in mouse spleens after immunization with srbc .
C0014264
bacterial endotoxin
C0023810
lipopolysaccharide