Table 2 Coding strategy, Variables Definitions, Intercoder Reliability, Examples

Structure

Hyperlink

With a hyperlink to another website

National Health Commission’s announcement to satisfy the basic health demand of the general public, link:http://www.nhc.gov.cn/yzygj/s7659/202002/6d5a8556c5ce46368263711698d8237a.shtml

#

with the hashtag #

Guidance for New Coronavirus Prevention #New Coronavirus Prevention##New Coronavirus Pneumonia Prevention#

@

Mention an another individual or organization’s name

#New Coronavirus# What can you do if you got pneumonia? Protect yourself and protect others @Health China @People’s Daily @National Health 12,320 @ Weibo Health

Picture

With a picture

#Pop Health Science# Guidance for Pregnant Women and Children to prevent Corona Virus (cartoon version) [picture]

Video

With a video

#Pop Health Science# During the time period of pandemic, how should parents help children to physiologically adjust? [video]

Style

Q&A (?)

With question mark? to indicate a question and an answer

Am I a close contact? Don’t “underestimate” the enemy! Whom should be counted as a close contact!

Emotional (!)

With exclamation mark! to indicate a strong sentiment

Attention! In the face of pandemic, we can’t ignore mental health!

Content

Severity frame

With the information of the severity of the disease, including the incidence of disease, and mortality etc

#Nationwide Confirmation of Coronavirus Cases# Till 22^nd January, NHC has reported with 571 confirmed cases, 95 serve cases, 17 death cases (all from Hubei), and 393 suspected cases

Uncertainty frame

With the information of the uncertainty of the disease, including the defining the unknown mechanism of the virus and the different opinions among experts

#cured patients returned positive after nucleic acid amplification testing# Experts are still figuring out why cured patients return positive result

Action frame

To announce governmental action to combat the disease, including important meeting, policy, inspection, and punishing officials who neglected their duties to prevent and control the disease

#Health Announcement# The CCP central committee has set up a specific group to fight against the disease

Reassurance frame

To encourage the public not worry and increase the confidence over governments’ solutions, including the preparation, medical experts’ contribution, the stories of gross-root units, the number of cures, and donation or encouragement from individuals and organizations

#Gross-roots Fight against the Disease# A group of voluntary medical workers is helping firms and corporations with reopening

Efficacy frame

To emphasize the specific solutions for individuals and organizations, including the interpretation of experts and guidance

#Pop Health Science# China Central Television’s anchors teach you how to select the proper facial masks

Technology frame

Known medical information and treatment breakthrough

#New Coronavirus # What is fecal–oral transmission?