I am not convinced that the Corona virus can have such a dramatic affect on the Bitcoin price. This virus have been around for months now and the Bitcoin price was stable. We even had two huge positive announcements, with both India and South Korea accepting Bitcoin as a commodity/currency. 
This is looking more like price manipulation prior to the Halving, because the whales know the Halving will have a further positive impact on the price and they want to scare the "weak hands" into selling their coins to make a bigger profit.
There is nothing negative driving this huge price drop.
The WHO declaring COVID-19 situation a pandemic is a pretty big news. Moreover, the number of cases is rising and new and new measures are being introduced by the governments of different countries. People are starting to take this outbreak very seriously, and the world economy is taking a very big hit. Bitcoin could have stayed stable throughout the whole thing IMO, but we've all been around for long enough to see that it's mainly FUD that triggers major price drops rather than something serious Bitcoin-related actually happening. I had no idea the impact would be so big, but I do hope that people will wake up and let Bitcoin recover.This is looking more like price manipulation prior to the Halving, because the whales know the Halving will have a further positive impact on the price and they want to scare the "weak hands" into selling their coins to make a bigger profit.
There is nothing negative driving this huge price drop.