>If that is the case China’s successful control of previous strains will become a devastating liability with this strain. I've been wondering about this as wel

>If that is the case China’s successful control of previous strains will become a devastating liability with this strain. I've been wondering about this as well, the extreme example of this would have been the European invasion of the Americas, and the thousands of years of disease evolution of common viruses around the world that the natives missed out on, which killed most without weapons. There's a certain value in letting your population's immune systems adapt as the viruses come, instead of letting it be overwhelmed after long isolation. We're in a constant natural arms race with viruses, isolation isn't sustainable.