Wuhan, China: On December 1, 2019, the first person reporting ill (later determined with coronavirus) was origianlly stated to have no link to the seafood market. This seafood market reference is removed from the later Johns Hopkin’s article. [2]
In a leaked Five-Eyes intelligence report it is stated on December 6, 2019, that being “Five days after a man linked to Wuhan’s seafood market presented pneumonia-like symptoms, his wife contracts it, suggesting human to human transmission” The Daily Telegraph reports in their compiled timeline of key dates mentioned in the Five-Eyes intelligence report. [1]
CDC place the first cluster of patients on 12 December 2019 (with no citation).