The death of a whistleblowing doctor who was reprimanded for warning about the new coronavirus has sparked rare calls for political reform and free speech in China. Li Wenliang, an ophthalmologist in Wuhan — ground zero of China’s virus epidemic which has killed more than 800 — succumbed to the disease Friday over a month after he first raised alarm about the SARS-like virus. At least two open letters demanding free speech have circulated on social media since the 34-year-old’s death — one signed by 10 professors in Wuhan.