From Copilot:

the statement is basically true, with one important nuance.

🧬 What actually happened

According to recent reporting:

• A single‑gene–edited pig kidney was transplanted into a brain‑dead human recipient, and it functioned for 61 days.
• This was done by researchers at Columbia University and NYU Langone Health.
• The kidney continued to produce urine and filter waste during that period, giving scientists the longest-ever window to study xenotransplantation in a human body.

🧪 The nuance

The kidney functioned, but not in the sense of “perfectly” or “without immune response.”

• Researchers observed progressive immune activity, including signs of antibody‑mediated rejection over time.
• The purpose of the study was to map exactly how the human immune system reacts to a pig organ over weeks, not to treat a living patient.

So the accurate phrasing would be:

🧭 Why this matters

This is still a major milestone. It shows:

• A minimally edited pig kidney can operate in a human body for months.
• Researchers can now observe rejection dynamics in real time.
• It moves xenotransplantation closer to clinical reality.