Definition Bacteremia a Bacter ia invade into blood temporarily with flora <100 CFU/ mI in blood Septicemia or Seps is: Pathogens(bacter ia or fung i)invade into blood, pro l iferate great ly, and release endotox in Toxemia Endotox in absor bed into blood with no bacter ia Septicopyaemia: Sepsis with metastatic foci in or gans pyemia is a status which no bacter ium in blood is culturedDefinition Bacteremia： Bacteria invade into blood temporarily with flora <100 CFU/ml in blood Septicemia or Sepsis： Pathogens(bacteria or fungi) invade into blood,proliferate greatly,and release endotoxin Toxemia： Endotoxin absorbed into blood with no bacteria Septicopyemia： Sepsis with metastatic foci in organs,pyemia is a status which no bacterium in blood is cultured