If the 'winter flu' kills 0.2% and the Corvid19 planning assumption is 2%, then x10 is not something to be relaxed about. The Government has a difficult path between instilling mass panic resulting in maximum economic damage and allowing the NHS to be overwhelmed. Flattening the trajectory into the early summer is clearly desirable. The latest thinking is to try to allow infection to build a 'herd immunity' in the general population whilst protecting the eldely and those with lung conditions or poor immune systems.
We are in uncharted waters now. If you are interested you might find this article worthwhile reading.