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Event Brief

Sperm donor linked to nearly 200 children has cancer gene

Danish European Sperm Bank blocked donor after discovering cancer gene mutation linked to nearly 200 children.
WHO: Danish European Sperm Bank
WHAT: Sperm donor with undetected cancer gene
WHEN: Dec 9, 2025 at 7:00 PM ET
WHERE: Europe
WHY: Donor's sperm was overused; mutation discovered

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