The COVID-19 restrictions are at the heart of the unrest in China as the country grapples with a rising number of infections after years of quarantine policies.
The COVID-19 pandemic has stimulated important changes in online information access as digital engagement became necessary to meet the demand for health, economic, and educational resources.
Researchers at the U.K. Health Security Agency estimated that one dose of the vaccine was 78% effective at protecting against infection 14 or more days after vaccination.
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