I watched a Youtube video last night about the food merchants in some of the markets in Wuhan and I noticed that most of them are using electronic payment methods to pay for goods. < Wechat Pay >
Ok, it is not Bitcoin, but if more merchants using Fiat currency can switch over to Bitcoin, you might see less infections. The reason for this is simple, because the Corona virus can be transmitted from person to person via cash being used on a daily basis.
People can also do online payments with Bitcoin to avoid handling physical cash and thus avoiding infection. It can also prevent people from being infected from a host of other viruses and bacteria that can survive for days on physical coins and notes.
This is just one more reason for people to move away from physical payment methods and shifting to a cash-less financial system in the future.

You have a point here, maybe in the future this suggestion can be used it will keep people safe from transmissions of any viral diseases because this is not going to be the first one that is going to happen, many new virus that are more viral and contagious that could come out in the future and this is a good options to trade commodities and cash.