If you've been paying attention for the last month or two, there are hundreds of anecdotal reports and videos all pointing toward the same grave conclusions - not to mention dozens of published (awaiting review) papers at this point and, increasingly, many if not most of the rumors from 1-2 months ago are gradually being confirmed. Look no further than China's unprecedented response to this outbreak - 700 million people are under lockdown and their GDP is effectively shut down.
Frankly, the modern media establishment's standards for proof are too high to adequately cover such a rapidly unfolding catastrophy when the majority of information has to come from unofficial leaks because ground zero is an authoritarian regime which controls what it's citizens can say amongst themselves and to the rest of the world. This epidemic is far worse than westerners currently seem to understand, and if it is not contained, the chaos that will grip the rest of the world will be truly awesome to behold. This is a virus which is at least as deadly as the infamous 1918 flu, likely more virulent (R0 estimates anywhere from 3 to 6+), and there is still no cure, though a paper was published on the 4th with chloroquine as a potential candidate. Plus, based on autoimmune reactions induced by all previously developed viable vaccine candidates for SARS and MERS, there is unlikely to be a vaccine for this coronavirus as well.
As I've been saying for a month now, we should not be panicking, but there's no excuse at this point not to be prepared. WSJ announced 5400 people in California are under quarantine today. 700 people in WA under supervision from authorities. Personally I'm moving to minimize my reliance on the government in the case that this pandemic spreads to the U.S. at large, based on the rank incompetence that we see in government activities on a frequent basis.
Honestly watching so many average people dismiss 2019-ncov has been a fascinating exposé on the potential for centralized information control in free speech societies - if you're a 3 letter agency and you want something to disappear from public consciousness, just preemptively leak the story to "questionable" sources and suddenly the media won't report on it and people will balk at you for posting junk sources. What a world we live in!