Of course it will affect the Chinese economy but not for the crypto world, there is no correlation between the two and the fall in crypto prices yesterday was not caused by that virus and as far as I know even last year before the Chinese New Year at least prices weakened and this happened again this year which in my opinion that virus no effect for the crypto market.
For cryptocurrency itself, I think the virus has no impact or has anything to do with falling prices in cryptocurrency and it may only affect the economy in China, which of course becomes unstable because the virus is spreading to everywhere. But for cryptocurrency it does not make sense if it impacts the price of cryptocurrency.