Eric has a good thread:

Eric Feigl-Ding @drericding.bsky.social‬
5 years ago—Wuhan doctor Li Wenliang warns his colleagues on Dec 30 2019 that 7 people in Wuhan have been diagnosed with COVID. He was subsequently arrested for "spreading rumors". Dr Li died while treating patients on the front lines, of the disease he first tried the world about

bsky.app: @drericding.bsky.social on Bluesky

The detection was noted at the South Chinese Fruit and Seafood Market.

SNIP A bit before midnight on January 20, a Harvard epidemiologist named Eric Feigl-Ding posted a long, terrifying Twitter thread mostly summarizing, and in a few places contextualizing, a new, pre-publication paper on the infectiousness of the novel coronavirus that had, at the time, forced Wuhan into a total lockdown but had not yet been detected outside of China. The context he added was, mostly, alarmism.

“Holy mother of god,” the thread began, “the new coronavirus is a 3.8!!!” That figure referred to what’s called the reproduction number, or “R0,” of a disease: how many people would be infected by a single sick person. “I really hate to be the epidemiologist who has to admit this, but we are potentially faced with … possibly an unchecked pandemic that the world has not seen since the 1918 Spanish Influenza. Let’s hope it doesn’t reach that level but we now live in the modern world 🌎 with faster ✈️+ 🚞 than 1918. @WHO and @CDCgov needs to declare public health emergency ASAP!” SNIP

nymag.com - Why was it so hard to raise the alarm on coronavirus