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World’s Longest-Frozen Embryo Yields Baby After Over 30 Years

Improvements in vitrification methods have enabled healthy births from embryos frozen for decades

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Thaddeus Daniel Pierce newborn
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Overview

  • Thaddeus Daniel Pierce arrived on July 26 in Knoxville, Tennessee, after spending more than 11,000 days in liquid nitrogen
  • The embryo transfer at Rejoice Fertility Clinic was overseen by Dr. John Gordon, whose practice accepts even the most geriatric embryos under refined vitrification protocols
  • Donor Linda Archerd entrusted her surplus embryos to Nightlight Christian Adoptions’ Snowflakes Open Hearts program in 2022, matching her donation with recipients Lindsey and Tim Pierce
  • Despite a challenging delivery, both mother and baby are in good health, with Lindsey describing Thaddeus as remarkably calm
  • The milestone has intensified debate over U.S. policies that allow roughly 1.5 million embryos to remain in indefinite storage without federal time limits