Also known as toxemia, preeclampsia affects some 5 percent of pregnancies and is a leading cause of maternal and fetal illness and death, particularly in deeloping nations.

• 象毒血症一样，先兆子痫影响了大约5%25的孕妇，是导致产妇和胎儿疾病和死亡的主要原因，尤其在发展中国家。