Four sets of twins in just 32 hours, to be precise, according to the hospital.
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The multiple twin marathon began on June 29.
Doctors delivered three sets of twins on that one day, and a fourth set the following afternoon.
The eight babies include Ethan and Yisol Lee, identical sisters Hadley & Olivia Sacher and brothers Henry & Logan Smith.
"I cannot recall so many twin births within that short of a time frame," said Lou Filoteo, RN, a nurse manager who has worked at Packard Children's Hospital for 19 years.
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What are the chances? According to the hospital, the odds of having four sets in a row in such a short time are slim indeed: roughly one in 1,000,000.
Three of the twin sets are now settling in at home.
Identical sisters Hadley and Olivia Sacher, born weighing just 4 lb 7 oz and 3 lb 9 oz, remain in the hospital's intermediate care unit, where they are doing well, according to a hospital press release.