I like this forum for the woo woo fun and don't get too serious often, but..
A few researchers are bucking against the managerial class running the response at the WHO and CDC, stating we could see up to 60% of the world's population infected. You should understand what that means.
When a deadly epidemic hits and overwhelms a medical system, the infected society runs out of ICU beds really fast. Americans enjoy something like 20 ICU beds per 100k people, for instance, and that would be overwhelmed almost instantly if this goes pandemic. Thus the higher case fatality rate you see in places like Wuhan province. Somewhere around 20% of the infected need intensive care. When you can't provide it, then many of them die. Thus far, that number seems to be holding at right around 15% of the infected in Wuhan.
If 60% of the world becomes infected, you are talking about 4.68 billion sick people. 15% of those is just over 700 million dead. That comes out to about 28 million Americans dying from this disease. Almost 6 million Britons.