Definitely a global epidemic like corona virus will cause a huge disaster not just only to the economic or banking sector of a country but a great fall in the world economy as well. Same way situations like war cause a nation economy breakdown, a deadly disease as well can as cause such. Some country has already banned any gathering of huge people such as blockchain events which were supposed to take place in china some weeks back also some football events has been suspended while the fight against this virus is still on.