Jan 12: Respiratory wards in Wuhan start to reach capacity.
Jan 13: Thailand reports its first case of the novel coronavirus.
Jan 14: WHO tweets that Chinese authorities have found no evidence of human to human spread. The Wuhan Municipal Health Committee states that they have not found evidence of human to human transmission, but it cannot be ruled out. This is repeated by the head of the WHO’s emerging diseases unit. The Democratic Presidential Primary Debate happens. *
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Preliminary investigations conducted by the Chinese authorities have found no clear evidence of human-to-human transmission of the novel #coronavirus (2019-nCoV) identified in #Wuhan, #China🇨🇳. pic.twitter.com/Fnl5P877VG
— World Health Organization (WHO) (@WHO) January 14, 2020
Candidates are talking about climate change, yet they haven't uttered a word about Puerto Rico.
— Voto Latino (@votolatino) January 15, 2020
It's insane how much pain and suffering our people in Puerto Rico have endured, yet no one is talking about PR. #DemDebate
* Timeline summaries at the top of the page come from a variety of sources:, including The American Journal of Managed Care COVID-19 Timeline (https://www.ajmc.com/view/a-timeline-of-covid19-developments-in-2020), the Just Security Group at the NYU School of Law (https://www.justsecurity.org/69650/timeline-of-the-coronavirus-pandemic-and-u-s-response/), the “10 Things,” daily entries from The Week (theweek.com), as well as a variety of newspapers and television programs.