One data point might be Toronto. SARS had a pretty large social impact here, and people are far more cautious and measured in the face of COVID-19, but not panicking. Not yet anyway.

But small changes have been impactful—like some businesses immediately getting on wider WFH policies and self-quarantine for returning business travelers as well as general hygiene—people aren't always great at that but it's a conscious act on everyone's part lately. Businesses and buildings even started placing more sanitizer stations, etc.

The scale is different, certainly. But the prep work is the same. Imagine if we did all this for the flu. We'd make pretty short work of that.