Table 1 Phase division of COVID-19 response.

From: How to improve the effectiveness of the cooperation networks of emergency science communication for public health emergencies

Press conferences

The time interval

The phase division

71

December 27, 2019–April 28, 2020

Emergency Response to COVID-19

78

April 29, 2020–June 5, 2022

Ongoing Emergency Prevention and Control of COVID-19

159

December 27, 2019–June 5, 2022

Whole phase

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