Twitter users got banned in early February 2020 because they were sharing images and videos from locked-down Wuhan that were deemed as inappropriate.

I know that my main information source on the virus back at the time was a Chinese lady expat living in the States who was writing for Epoch Times, not the most credible source generally speaking but on this she was ahead of the MSM by at least a day, that is when the MSM wasn’t ignoring what was happening in China completely.