Palmer, I think it has to be spread by casual contact.
I’m sure it spreads within a family. I’m also sure it spreads by casual contact.
For the first person in a family to contract the disease, they’d pretty much have to do it through exposure in public.
All I can do is speculate at this point, but it seems to spread like the flu.
You are addressing the low numbers, but many folks are sure we are being lied to about that (by China). That may be the case.
It would seem these issues could easily be answered by studying the folks outside of China who have contracted the disease.
Like the bus driver in Japan who caught it from a tour group.
China had 6-8 weeks of spreading so far. 10k cases is pretty minimal after that length of time. There might be a lot more cases. If there are 10x or 100x more cases, then the mortality rate is 10x or 100x lower, unless the Chinese are also lying about mortality. But it is much harder to lie about the mortality.