Simulation Model on Network Public Opinion Communication Model of Major Public Health Emergency and Management System Design

Table 1

Review of the development of the “COVID-19 pneumonia” epidemic.

Important time period (point)	Event content (situation)
2019.12.31–2020.01.15	On December 31, 2019, an unofficial network circulated a report that “patients with unexplained pneumonia were found”; on December 31, the Wuhan Health and Health Commission notified for the first time that “27 cases were confirmed, but the cause was not clear.” On January 9, the official confirmation, the pathogen was identified as the “COVID-19.”
2020.01.16–2020.01.26	The China centers for disease control and prevention were upgraded to the first-level emergency response (the highest level); subsequently, 30 provinces initiated the first-level response to major public health emergencies; Wuhan City was closed on January 23.
2020.01.27–2020.02.03	Various localities have successively issued notices on strengthening the standardized management of communities during the epidemic prevention and control period; there are too many suspected and confirmed patients, and Fangcang shelter hospitals and Huoshenshan hospitals have been established to treat patients. The WHO has listed the novel coronavirus epidemic as a public health emergency of international concern.
2020.02.04–2020.02.15	On the 11th, the World Health Organization officially named the pneumonia caused by the COVID-19 as COVID-19; Mi Feng, a spokesperson for the National Health Commission, said that, as of the 15th, the proportion of severe cases in Hubei and other provinces in the country has dropped significantly.
2020.02.16–2020.02.23	The epidemic situation in China has gradually improved, and countries outside Japan, South Korea, the United States, Italy, and other countries have begun to break out of COVID-19 pneumonia, causing domestic netizens to discuss again.
2020.02.24–2020.03.01	The new crown pneumonia epidemic has been under control, and China has lowered the emergency response level of the new crown pneumonia epidemic.