由李司忒氏菌引起的围产期李司忒氏菌病,可导致死胎、早产、新生儿脓毒症及脑膜炎,母体的菌血症及下生殖道的上行性感染(垂直传播)均可累及胎儿。患病胎儿、新生儿的死亡率达20％～50％。在美国洛杉矶,该病的发病率较高。妊娠期由于高浓度的胎儿蛋白及母体激素,致使胎儿母体结 Perinatal Listeriosis caused by Listeria can cause stillbirth, premature birth, neonatal sepsis and meningitis, maternal bacteremia and ascending infection of the lower genital tract (vertical transmission) Can affect the fetus. Fetal sickness, neonatal mortality rate of 20% to 50%. Los Angeles in the United States, the incidence of the disease is higher. Pregnancy due to high concentrations of fetal protein and maternal hormones, resulting in fetal maternal knot