You can't contain something that is already here!
Now you have them screening people because they are traveling and potentially reintroducing them to a population that you have no idea about.
Look at the news, you might test negative and your wife might test positive like the P.M, now what are you going to do?
Triage is not a problem, the sick ones are going to be the ones that are down for the count and the rest become care givers at risk.
Eradicating the virus requires we all stay healthy and not continue to provide the nasty thing a great place to thrive and multiply,
and It probably lives in the lungs of living things because that is how it is killing people, but we really have no idea how well it travels, for all we know it might be carried on trade winds and has circled the globe several times by now!
Everybody stay healthy for a while