Analysis of media information monitoring results of COVID-19 in Shanghai in 2022 based on an internet surveillance system

ObjectiveTo understand the internet media information of COVID-19 in Shanghai in 2022， to provide evidence for health administration departments to respond to public health emergencies， and to establish a comprehensive public health media surveillance system.MethodsData on internet media information and the local COVID-19 epidemic data in Shanghai from January 1 to June 30， 2022 were collected and analyzed.ResultsA total of 90.197 3 million pieces of internet media information were monitored. The top four sources of the information were Weibo （36.84%）， short videos （26.19%）， internet media （14.47%）， and forums （13.31%）. The variation trend of daily internet media surveillance information was identified with the number of newly reported cases per day， and a correlation was found （r＝0.770. After the seven-day moving average，r＝0.796）. Frequent keywords included Shanghai， cheer up， nucleic acid， new cases， local， asymptomatic， prevention and control， gratitude， isolation， epidemic prevention， supplies， pandemic r