There were already discussions of how a few mining farms in China were forced to close down, Not to mention that a few mining groups are thinking of migrating to other countries because of the current state affairs the country currently is. Additionally, the recent drop has caused a few mining groups to close down not because of the virus, but because the price current handles the expenditures that they are currently using. Supplies of mining rigs are also being delayed because of the virus, so you can expect that they are hit quite big ngl.
There are significant number of sites and news saying that China now have less to zero number of infection a day, and the price of Bitcoin from the end of the month of March have been steadily growing from the dump to $3,500+ value. I think this events does explain why even if there is a worldwide quarantine implemented by each country, the development in the price of Bitcoin still continues up to this day. China is a big country, and it hosts a large community of Crypto currency, and the possibility regarding the recovery of the Bitcoin price might be rooted from the recovery of China.
Just a recent article stated that there were 30 new infections, though the said infections were "imported" while a few were infections from inside. Still, I doubt it would end with that with how big of a country it is. Though I have to admit that the quarantine procedures they are enforcing are pretty effective.
