"They were also one of the first few countries to ban return flights to and from mainland China, having announced the suspension from Feb. 1, 2020, slightly mor

"They were also one of the first few countries to ban return flights to and from mainland China, having announced the suspension from Feb. 1, 2020, slightly more than a week after the country's first cases of Covid-19 were found." How much of their reported success in containing the virus was due to this, and how much was due to the lockdown? Other countries which have fared relatively well (e.g. NZ, Australia) also closed their borders early.