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Thallium Poisoning of Zhu Ling | How the Internet Helped Solve a Mysterious Medical Case (6x33)

: 17, 2025

Looking at the medical mystery behind the thallium poisoning case of Chinese college student Zhu Ling. In 1994, a bright, young college student in Beijing suddenly fell dangerously ill. As her condition worsened and doctors scrambled for answers, no one could explain what was happening. A blog post from her friends uncovered the truth: she was being poisoned. But the discovery raised more questions than it answered. Who was targeting her, and why? Today, we’re looking at the Thallium Poisoning of Zhu Ling.