CNN reported on the 21st (local time) that twins are being born from embryos frozen for 30 years in the United States.
On the 31st of last month, Rachel and Phillip Ridgway, who live in Portland, Oregon, USA, gave birth to twins Lydia and Timothy through an embryo donated by an anonymous donor.
The twins’ embryos were frozen on April 22, 1992, 30 years ago, and are estimated to be the longest frozen embryos of a child born in this world, CNN reported.
“We weren’t trying to get the longest frozen embryo in the world,” said Philip, the twins’ father. “We wanted the longest-awaited embryo.”
The Ridgway couple went through the process of checking information such as the donor’s body, genetic conditions, education level, occupation, and cultural tastes such as movies and music to select embryos before conception.
The Ridgway couple explained that they thought the earlier the donor number was, the longer they would have given the embryo, and tried to choose the donor with the previous number in order.
As a result, the couple selected embryos that had been stored for 30 years in a small device on top of a straw filled with liquid nitrogen at close to -200 degrees Celsius.
The couple already have four children, aged 8, 6, 3, and a child approaching 24 months old.
“The twins (born this time) are the youngest children in our family, but in a way they are the oldest,” said Philip.
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