The Travel Advisory may not seem like a big deal, but it's actually HUGE. What it means is that Canadians will not have any travel health benefits if they're hospitalized and/or quarantined because of a real or suspected case(s).
I'm not sure if US advisories affect travel insurance to foreign countries in the same way as it affects us Canadians, but i would suspect they do.
The answer in the U.S. is far more complicated than in Canada because we have many different insurance companies, each with their own set of rules.
For example, my health care benefits through my insurance company cover me wherever I travel, although in some countries, I have to pay out of pocket up front and they will reimburse me and it doesn't matter if there was a travel advisory or not. And this isn't even travel insurance.
As for the U.S. having 1,000 cases, that is quite a bit different than Italy having 1,000 cases. The U.S. has 331 million people while Italy has about 60.4 million. So percentage wise it is a lot lower in the U.S. than Italy. Another factor to look at is land size and how spread out everything is in the U.S. compared to Italy.
As for
Disneyland or any major theme park closing, it is highly unlikely, the So. Cal economy depends far too much on them and if the So. cal economy dies, so does California's, then the nation's, then the world's. And given all of the sporting events, concerts, conferences, business travel, etc. That are getting canceled, we will become even more dependent on all things tourist. That isn't to say that there won't be adjustments made, there absolutely will be. For example, I could see Finding Nemo Submarines closing until this blows over, as like cruise ships, those are mobile Petri dishes, only worse since they arent constantly being sanitized like cruise ships are. I could also see further cuts to performance of the Frozen Show since it is indoors and houses a lot of people at once. But a total shutdown is highly unlikely. Not to mention, Disney would have major issues in the U.S. with shutting down the parks due to how many passholders are on payment plans. Would Disney continue to charge them while the parks are closed? Would they extend the expiration dates of their passes? (Although that one applies to all passholders)
So while Disney was able to close foreign parks, the domestic parks a different animal and are highly.unlikely.to be closed. Heck, they didn't close Disneyland when there was a measles outbreak that started at Disneyland.
You will see more hand sanitizers, possibly even reminders about hand washing and such and as I said there may be some other adjustments, but a total closure is doubtful.