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How a DNA Test Solved a Medical Mystery – and Revealed a Doctor’s Decades of Deception

Dr. Charles Peete inseminated patients with his own sperm without consent, affecting multiple families and violating ethical standards, revealed by DNA testing in 2023.

  • Recently, genetic testing solved a medical mystery for Summer McKesson by revealing inherited connective tissue and clotting disorders and DNA matches linking seven half-siblings to Duke patients of Dr. Charles Henry Peete Jr.
  • At the time, intrauterine insemination was only recently becoming common thanks to advances in freezing and sperm banking, and clinics often relied on donors from medical trainees, complicating transparency at Duke University Hospital.
  • Laurie Kruppa recalled her visits with Dr. Charles Henry Peete Jr., saying he used his own sperm for each child without her consent, a truth that surfaced decades later.
  • The Kruppas disclosed the paternity news during a family vacation and follow-up meetings, with Kruppa children expressing anger and distress while experts said Peete's actions violated informed consent and would be considered medical malpractice.
  • Consumer DNA testing services have recently surfaced many fertility fraud claims, with experts warning the U.S. fertility industry remains underregulated compared to other countries.
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How a DNA test solved a medical mystery – and revealed a doctor’s decades of deception

Summer McKesson struggled to breathe for years. Doctors told her it was because her blood would not stop clotting – and they couldn’t figure out why.

·Canada
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Summer McKesson took a DNA test in October 2023 that unexpectedly revealed several previously unknown half-siblings. It turned out that their mothers had received infertility treatment from the same doctor at Duke University Hospital in the 1970s and 1980s.

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CNN broke the news in Atlanta, United States on Saturday, October 25, 2025.
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