When we are talking about a country's economy, this kind of epidemic definitely ruin their economy. Imagine, their country freeze for a while; the businesses are on halt, the financing is affected and as well as manpower. So technically speaking, their economy in this time is on decline for sure. However, the crypto market is not working the same with the other, it will not be affected or at least only got minimal damage since it exists in th Internet. Actually this might be in favor of crypto because Chinese investors (whether whales or small) are likely forced to isolate inside their rooms and face the monitor which means more time for them to deal with crypto .