澳大利亚34岁妇女詹妮塔·索·纳阿莫阿纳于7月14日成功产下四胞胎女孩，这是一次极其罕见的自然受孕妊娠 1。四个婴儿分别取名艾米丽、哈丽特、凯瑟琳和亚历克莎，均由单个受精卵自然分裂而成 1。
医学界对这一事件的罕见程度评价极高 1。四胞胎由同一受精卵分裂产生的医学概率约为1500万分之一，而自然受孕四胞胎的总体概率为70万分之一 1。参与接生的医生亚历克莎·本德尔表示："我们认为这在澳大利亚从未发生过" 1。
母亲詹妮塔已有四个孩子，在本次妊娠10周时开始接受医学监测 1。妊娠25周时，她被住院观察 1。四胞胎在妊娠28周4天时通过剖腹产分娩 1。目前，母亲和四个婴儿状况良好，婴儿们正在新生儿重症监护病房接受护理 1。
A 34-year-old Australian woman, Janetta Sao Naa Moana, has delivered identical quadruplet girls in what medical experts consider an extraordinarily uncommon natural pregnancy 1. The four daughters—Emily, Harriet, Catherine, and Alexa—were born on July 14 at Royal Brisbane and Women's Hospital in Queensland 1.
The quadruplets developed from a single fertilized egg that naturally divided, an occurrence with medical odds of approximately 1 in 15 million 1. While the overall probability of naturally conceiving quadruplets is 1 in 700,000, identical quadruplets from a single embryo represent an exceptionally rarer outcome 1. According to physician Alexa Bendel, "We believe this has never happened before in Australia's history" 1.
Sao Naa Moana, who already had four children, began receiving medical monitoring at 10 weeks of pregnancy and was hospitalized at 25 weeks 1. The quadruplets were delivered via cesarean section at 28 weeks and 4 days of gestation 1. All four infants are currently in neonatal intensive care and are doing well, as is their mother 1.
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