If the government wanted to so decree, they could decree banks could not forclose on bankrupt customers and must restructure loans. They've already done that for rent and mortgage agreements in many areas where people are hard hit by this. That would stop the loss of money right there.
The market is demanding liquidity to be able to manuver an uncertain future; this has caused an effective collapse of the credit market due to demand. Much like there's no TP on the shelf, there's no credit on the shelf; the fed however can print a lot of money if it wants to which ironically enough, can then be invested to print TP. If everyone has cash in the bank account, they feel secure, and that in of itself will stop the stock market from collapsing further.
The way they avoid inflation is by providing loans at a rate under the rate of inflation; free money, but it has to be paid back and over a reasonable term. This will expand the amount of money in the economy for a time.
History will remember this as is a perfect storm; the medical industry has been a tremendous burden on government and employers backs in the form of an unscrupulous blackbox of spend. A couple million deaths especially of elderly patients is going to upend the medical industries cash cow and at the same time force a hard look at what the industry is doing to be prepared for pandemics like this one. If you have cash going into this downturn, now's the time to start plotting where you are going to invest it for maximal gains.