It appears to be highly contagious.
The oft repeated 2.2% assumes everyone merely sick will recover. The only <heavy sarcasm quote>reliable</heavy sarcasm quote> statistic, those died vs those recovered shows fatality rates of between 51 and 54%. IOW, anyone ending up in an ICU has a less than 50% chance of walking out.
Those people who've only been sick a few days or weeks don't count as dead, the disease hasn't run it's course, they are effectively Schrödinger's patients. Status to be determined when someone peeks inside their box.
It's virulent enough to shut down everything in cities with some 100 million or so people in the space of a little over a month.
It may yet crash the world economy.
How much more virulent does it need to be?
Stop making stuff up! You are claiming things NOT in evidence. Not one report has anything close to a reported 51-54% fatality rate and you should not be claiming anything such as that based on something you’re pulling out of your nether regions.
Original reports had approximately a 4.6% fatality rate and it has been dropping since then. That’s logical as only worst cases went to the hospital and then wound up in ICUs.
Cases in the USA are only being placed in isolation, not in ICUs. If someone does get sick enough to wind up in an ICU, then naturally they are far more at risk than someone who does not. Persons who have been placed in ICUs generally have secondary infections of pneumonia, or some other bacteriological opportunistic infection due to the weakened condition from what I have read.
The SHUT DOWN of these cities is due to an over abundance of caution to prevent the spread, not due to people actually being sick with the disease.
The Mayor of Wuhan said that five million people left the city before they closed transportation. Where are the infections spreading from those five million? China’s government can close down travel because they can. They use internal passports to limit their citizen’s travel and passage from one area to another.