Sure some desk based jobs can be done at home but it seems like nearly every restaurant, bar, and store would likely go out of business. As would airlines, trains, maybe hotels. Grocery stores would have to go 100% delivery only? Maybe be open 24/7 so people can spread out? Or would I need to wear a hazmat suit to get food? Note: there was a family riding the bullet train in cheap hazmat suits a few days ago.
I really have no idea. I suppose you can look at cities in China and see a full response.
I see lots of people saying "prepare" but then list having a week of supplies. Seem more like you'd need 6 to 12 months of supplies. Unlike an earthquake a pandemic would hopefully not stop the water flow or electricity like say an earthquake might but conversely it will be much longer before it's declared safe to return to any normal routine.