We first heard about the Corona virus a few days before the Chinese New Year holiday. At that point, it was on the news and my school were handing out packs of masks to all the staff. People were talking about it but it hadn't got crazy at that point.
Then Wuhan went into quarantine. Wechat messages from expats stuck in the city started circulating online and news reports of how many people were infected started to get reported. My school started issuing advice on a daily basis about wearing masks if going outside, washing hands regularly, etc
And then it just got even crazier. Western media were running some really hyped-up stories that seemed to feed everyone's panic (it had been relatively calm up to that point). The rest of Hubei province went into quarantine. Bars, restaurants and shops in Shanghai locked their doors (although it was CNY so they were probably going to close anyway as Shanghai becomes a bit of a ghost town during the holiday as everyone travels to their home towns/provinces to visit their families). Then the flight carriers stopped running flights.
I think that that's when things started getting really stressful here, and a lot of expats started to leave. They were worried that they couldn't get out if they left it any later. I chose to stay though. This is my home, it's not as simple as just packing a suitcase and jumping on a plane.
As time has gone on, things have got a lot stricter. My compound locks its gate at 8pm to discourage people from going out at night. This was never the case before. I can still get in and out through the back gate though so it's not like we're completely restricted.
Also, you have to wear a mask if you go out anywhere. And all the bars/malls etc that have stayed open will check your temperature when you enter.
For a while in Jingan all the expat places closed, but things are starting to open again now which is a relief. Weirdly, it's actually been nice to have some downtime! Not having to work (or just work online) without the hectic commute, has been really nice. Its brought people together too. It's all everyone is talking about out here! The risk is very low in Shanghai though. I imagine it would be much harder in Wuhan. People are much more restricted there.
I'm looking forward to when things go back to normal in Shanghai. But I can say that's it been pretty interesting to live through this. The media have definitely blown it out of propertion though. I think the risks are over-stated, especially outside of Wuhan.