Though COVID19 (SARS-CoV-2) is not expressly discussed in this article, the article's argument supports the reason why Central Banks should issue digital currencies, perhaps backed by stable coins, which are backed by assets to keep the digital currency "stable".

Let us jump right to the conclusion:

Conclusion In this article, we have shown the different ways of how DLT [distributed ledger technology, which is also known as "blockchain"] can be used to transform our current money and payment system into a more technological advanced, futuristic, reliable and safe system. DLT can provide tremendous benefits with respect to payment efficiency and settlement speed. Further DLT-based systems enable smart contracts that have the potential to automate business processes tremendously. We showed that either the private sector can make use of the technology and back the tokens on the blockchain by respective deposits, making it a private “Stable coin” or that the central bank itself could issue digital money that could then be transferred via DLT. In the last decade, the private sector has been very innovative in the use of DLT and has issued more than 5,000 crypto assets, e.g., Bitcoin, Ether and Co. In the last year, stable coins have received more and more attention. Stable coins are crypto assets that are backed by real assets, such as fiat currencies, government bonds or precious metals, to reach a high degree of price stability. Now it is time for central banks to participate in the process of innovating and digitizing the money and payment system. Central banks can use DLT to issue their own digital currencies (CBDCs) and insofar can make use of the features of DLT.

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Philipp Sandner 27 March 2020

https://medium.com/@philippsandner/how-will-blockchain-technology-transform-the-current-monetary-system-f98f9a6de013