At a guess, this is perhaps a consequence of the fact that the entire rest of China has been treating everyone from Hubei like a plague carrier since January re

At a guess, this is perhaps a consequence of the fact that the entire rest of China has been treating everyone from Hubei like a plague carrier since January regardless of whether they've even been there in years. Any country that didn't, at the very least, quarantine people who'd been in Hubei plus their close contacts back then probably can't expect the same results, and even that plus contract tracing and testing plus social distancing only seems to hve delayed the inevitable.