Beijing: China began censoring online discussions on the new coronavirus weeks before officially acknowledging the scope of the disease, according to a report published on Tuesday.
Although Chinese authorities did not publicly acknowledge the severity of the virus until January 20, censorship began as early as December 31, said researchers at the University of Toronto's Citizen Lab.
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Even general terms such as "unknown Wuhan pneumonia" and "Wuhan Health Commission" were deemed taboo in the early weeks of the epidemic, the report said
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More than 3,100 people have died and over 90,000 have been infected worldwide by the virus.
Citizen Lab said that its research showed at least one social media platform in China was blocking some virus content three weeks before the government confirmed it was spreading among people.
That "strongly suggests that social media companies came under government pressure to censor information at early stages of the outbreak," the report said.
In China, it is common for social media companies to scrub content considered politically sensitive, including protests and government criticism.
From the end of December to mid-February, Citizen Lab found more than 500 blocked keywords and phrases on WeChat -- which has over one billion active monthly users -- as well as on live-streaming platform YY.
Some censored terms referred to information that was later made official, such as the fact that the virus was contagious.