I think each market will be different in terms of reaction to the COVID-19. In the Bay Area, many tech companies have implemented work from home policies as their jobs usually have business tools that allow video conferencing, shared docs, etc to be able to do work from anywhere. However, I read an article that 85% of employees in the Bay are service workers and won't have that luxury of being able to work from home. Many of the lower income population will be affected with less business demand and reduced hours are already in effect for many hourly workers who need the income.
The Bay Area real estate has historically been driven by Tech stocks going up. With that slowing down, the money used for the high down payments will be put on hold to some degree as they wait for stocks to go up again unless they have been sitting on vesting stocks for awhile. I personally know some buyers that have backed out.
Also, everyone knows that Californian's have been moving out at a rapid pace over the past few years including 690k in 2018. I wouldn't be surprised if that went up to over 700k in 2019. Some have sold houses to move to more affordable areas like Texas, Arizona, Oregon, and Nevada. Others were renters looking to find a place they could afford. There will be a reaction of some sort to what is happening in CA for other areas as part of the trickle down affect. Not sure what that will be.
My concern is not for my wife and kids as based on the data, the younger population seems to be less at risk for and deaths related to the COVID-19 however, people like my parents are in the higher risk bracket as are people with pre-existing medical conditions which is a significant population. If this spreads through the community, they will be at risk so I encourage everyone to just be aware of their elderly friends and family or those with health related issues.