The Pandemic Starts
This next section of timeline details the early indications of a novel (new) viral epidemic developing in the city of Wuhan, China, with some outlying cases appearing in other parts of the world.
November – December 2019
November 18

November 21

Late November

December 16


December 18


December 22

December 26


December 27




December 30

Ai Fen, a top director at Wuhan Central Hospital, posts information on WeChat about the new virus. She was then reprimanded by officials 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 by Chinese officials shortly afterward.
Simultaneously, the Wuhan health commission notifies hospitals of a “pneumonia of unclear cause” and orders them to report any related information.
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Timeline Source Data Files
I built this timeline from a set of working notes in spreadsheet format. At present, my working notes have 1247 news entries, in addition to other references that form my “Additional Reading” sidebar entries, and other source references. Not all these news items are published in this timeline, for various reasons. My notes are freely available under a Creative Commons license (BY SA) to any writer or researcher who finds this work useful.
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When Did It Start?
Prelude <> Nov/Dec 2019 <> January 2020 <> February <> March <> April <> May <> June <> July <> August <> September <> Source Data
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