@shk292:
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I'd be interested to know how many inbound passengers are arriving at Vietnam's borders every week. My guess would be "very few". Ditto for the Pacific islands. That's our Achilles Heel - the number of people flooding into NZ and the inescapable law of probability that says it will cause outbreaks. But we have chosen to enable relatively easy travel into NZ despite the pandemic so that is a consequence we have to live with and minimise.
I do not know the total passengers per week but it is most definitely not "very few".
According to Flight Radar, there are something like 10 international airports in Vietnam. In the 24 hours from ~7am today (Vietnam time), there are/were ~28 scheduled incoming international flights into Hanoi and ~26 into Ho Chi Minh City; ie. 54 incoming international flights in the next 24 hours for just two of the 10 airports (did not bother checking the rest). Includes flights from China, Germany, Hong Kong, Japan, Kazakhstan, Malaysia, Philippines, Qatar, Singapore, South Korea, Taiwan, Thailand, and UAE.
Outside of the next 24 hours will be flights from many other countries, including Russia which has been the source of many of Vietnam's imported cases (recently and in the past). Other significant sources of imported cases in Vietnam include Dubai, Bangladesh, Kuwait, USA, UK, and Ukraine.
In addition to the above, Vietnam has land borders with several other countries and a number of their past imported infections have come in via land border crossings (including at least one infected young man who 'snuck in' illegally via a mountain trail and was not found until several days later).
By comparison, for Auckland there are 17 incoming flights scheduled (24 hours from ~midday), those being from Australia, Canada, China, Hong Kong, Japan, Singapore, USA, and Western Samoa.
Some of the flights are freight only (one into AKL is Tasman Cargo Airlines). Possibly many, at least in the case of NZ? Also do not know how many passengers per flight (NZ or Vietnam)
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There is nothing special about our situation at all in respect to imported cases.



