It's been four years since the world went into lockdown mode as COVID-19 rapidly spread across the globe. But a new book by political scientist Dali Yang dives into the information about, and mitigation of, the disease in its earliest days in China. In today's episode, Yang speaks with Here & Now's Scott Tong about the research that went into Wuhan, the way local governments and medical officials abstained from disclosing crucial intelligence in the early days, and the strict lockdown that followed. To listen to Book of the Day sponsor-free and support NPR's book coverage, sign up for Book of the Day+ at plus.npr.org/bookoftheday Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy