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.