Table 1.

Topics covered in microblog posts and the representative terms corresponding to each topic.

Theme	Topics	Terms corresponding to each topic
Patient admission	Patients’ outcry for help	help, attention, diffusion, receiving
Treatment and research	COVID-19 treatments	discharged from the hospital, cure, treatment, rehabilitation, Chinese Medicine
	Vaccine development	vaccines, prevention, drugs, clinical trials
Treatment resources	Medical resources	medical treatment, doctor, medical care, nurse, mobile cabin, ward
Fighting the epidemic together	Material donation	mask, materials, donations
	Fueling and saluting antiepidemic action	work with one heart, saluting, unity is strength, responsibility, persevere, fight
Work to restore order	Work and production resumption	resumption of work, resumption of production, employment, operation
	Study resumption	return to school, student, school, high school, college entrance examination
Prevention and control measures of COVID-19	Quarantine and investigation	quarantine, contact, fever, 14 days, investigation
	Joint prevention and control	headquarters, work leading group, joint defense, joint control
	Detection	nucleic acid, positive, negative
Domestic and overseas pandemic situation	Domestic epidemic	Wuhan, Hubei, prison, Zhejiang, Shandong
	Epidemics in neighboring countries	Japan, South Korea, Tokyo, Russia
	Epidemics in other countries worldwide	America, Trump, Britain, Italy, India, Brazil, France
	Epidemic statistics	confirmed cases, new cases, cumulative cases, suspected cases
Impact of COVID-19	Economic shock	economy, influence, market, shock
	Psychological influence	hope, worry, fear, terrible