the inhibitory effects were absent after the administration of vaccine heated for 1 h at 80 degrees c , implicating an important role for a heat-labile component , e.g. , lymphocytosis-promoting factor , and not for a heat-stable constituent , e.g. , endotoxin ( lipopolysaccharide ) .
C0014264
endotoxin
C0023810
lipopolysaccharide