"Timeline: The early days of China's coronavirus outbreak and cover-up

The timeline goes back many days before this effort begins. See after the jump.
From Axios, March 18:

Axios has compiled a timeline of the earliest weeks of the coronavirus outbreak in China, highlighting when the cover-up started and ended — and showing how, during that time, the virus already started spreading around the world, including to the United States.

Why it matters: A study published in March indicated that if Chinese authorities had acted three weeks earlier than they did, the number of coronavirus cases could have been reduced by 95% and its geographic spread limited.

This timeline, compiled from information reported by the Wall Street Journal, the Washington Post, the South China Morning Post and other sources, shows that China's cover-up and the delay in serious measures to contain the virus lasted about three weeks.

Dec. 10: Wei Guixian, one of the earliest known coronavirus patients, starts feeling ill.

Dec. 16: Patient admitted to Wuhan Central Hospital with infection in both lungs but resistant to anti-flu drugs. Staff later learned he worked at a wildlife market connected to the outbreak.

Dec. 27: Wuhan health officials are told that a new coronavirus is causing the illness.

Dec. 30:

• Ai Fen, a top director at Wuhan Central Hospital, posts information on WeChat about the new virus. She was reprimanded for doing so and told not to spread information about it.
• Wuhan doctor Li Wenliang also shares information on WeChat about the new SARS-like virus. He is called in for questioning shortly afterward.
• Wuhan health commission notifies hospitals of a “pneumonia of unclear cause” and orders them to report any related information.

Dec. 31:

• Wuhan health officials confirm 27 cases of illness and close a market they think is related to the virus' spread.
• China tells the World Health Organization’s China office about the cases of an unknown illness.

Jan. 1: Wuhan Public Security Bureau brings in for questioning eight doctors who had posted information about the illness on WeChat.

Jan. 2: Chinese researchers map the new coronavirus' complete genetic information. This information is not made public until Jan. 9.

Jan. 7: Xi Jinping becomes involved in the response.

Jan. 9: China announces it has mapped the coronavirus genome.

Jan. 11–17: Important prescheduled CCP meeting held in Wuhan. During that time, the Wuhan Health Commission insists there are no new cases.

Jan. 13: First coronavirus case reported in Thailand, the first known case outside China.

Jan. 15: The patient who becomes the first confirmed U.S. case leaves Wuhan and arrives in the U.S., carrying the coronavirus....

....MUCH MORE

 Earlier: 
SCMP: "Coronavirus: China’s first confirmed Covid-19 case traced back to November 17"