We have no option without Crypto-currency in the COVID-19 pandemic of the world.  

COVID-19 can be spread by tiny droplets that get into the air when we cough, sneeze or even laugh or talk. Social distancing limits the risk of exposure to those droplets. Wearing a mask also can help contain the droplets you produce, but it's important to wear the mask properly.

Cloth face coverings fashioned from household items or made at home from common materials at low cost can be used as an additional, voluntary public health measure.