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Event Brief

Pig kidney kept American patient alive for 271 days

An American patient lived for a record 271 days with a transplanted pig kidney inside his body, Boston doctors later replaced it with a human kidney earlier this year. Researchers said the human transplant has kept him alive ever since.
WHO: Researchers
WHAT: Boston doctors replaced a transplanted pig kidney with a human kidney after it had functioned for 271 days, and the patient has remained alive since the human transplant.
WHEN: Reported Sep 4, 2026 at 1:06 PM ET
WHERE: USA
WHY: Cause not yet established.
Sources (1): NBC News

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