It wasn't Li Wenliang's post that activated the Taiwanese response. It was the Chinese government's public alert on 30 December 2019 about a cluster of patients with "pneumonia of unknown etiology" that triggered the response.
That announcement came after top Taiwanese medical officials had seen those social media posts, realized how serious they looked, and started asking China about them.
> In the wee hours of Dec. 31, 2019, CDC deputy chief Lo Yi-chun could not sleep and was scrolling his phone when an online post shared in a CDC chat group caught his attention.
> Quoting information from Chinese websites, the post that appeared on PTT, one of Taiwan's largest internet bulletin board systems (BBS), warned about the potential danger of a SARS-like disease that was spreading in the Chinese city of Wuhan.
> "The post came out (on PTT) at 2 a.m., and at 3 a.m., I saw it being shared on a chat group by another sleepless CDC doctor," Lo said at a press conference Thursday.
> Lo said the post immediately caught his eye because unlike other unsubstantiated online messages this one included a chest CT scan, a hospital test result and what appeared to be a screenshot of messages sent by a doctor to his colleagues, warning them of a highly contagious virus.
> That announcement came after top Taiwanese medical officials had seen those social media posts, realized how serious they looked, and started asking China about them.
The first announcement from the Chinese government came on 30 December 2019, one day before the events described in your second article. ProMED-Mail sent out an alert on 30 December 2019,[1] and the next day, the outbreak was even reported on CCTV.[2] Social media posts gave additional information, but the existence of an outbreak of likely viral pneumonia was publicly declared before those posts, and people who follow emerging infectious diseases were following the story.
