At the time China had 1,975 "known" cases, a leaked video of a nurse claimed the actual number of cases was 90,000. Could that be fake, possibly, but if it's real and the Chinese government was trying to save face, it presents a bigger problem for the rest of the world- what other information are they withholding.

https://www.dailymail.co.uk/news/article-7929657/Nurse-treating-coronavirus-sufferers-China-claims-90-000-people-infected.html

Reuters reported that 500M were quarantined/affected in China by policies restricting movement.

https://graphics.reuters.com/CHINA-HEALTH-LOCKDOWN/0100B5EF3LJ/index.html

I think it's a little more serious than was first believed. Time will tell how bad it's going to get.