I respectfully disagree. Once the the cat (this virus) was out of the bag we can't put it back in. We can only delay until we have effective treatments. The high levels of mutation and and mutation make it impossible for the real world to contain given our present levels of knowledge and public health facilities. Can Vietnam or any other society continue to be successful for a hundred years if necessary? I don't think so. This is a case even the highest walls wont work forever.