When it first arrived, the southern saltmarsh mosquito looked innocuous to the untrained eye. But this aggressive little biter which, unlike other mosquitoes, could strike day or night, carried the debilitating Ross River virus, a human illness for which there was no vaccine.
The saltmarsh mosquito was detected in Napier, and then in 11 other coastal locations around the North and South Islands. It cost biosecurity authorities $70 million over 10 years, but eventually the mosquito was eradicated in 2010, and the whole country breathed a sigh of relief.
When the political will exists, New Zealand can eradicate unwelcome and unhealthy pests and diseases. We no longer have smallpox, or polio. In our isolated ocean-bound corner of the world, we can protect our borders from killer diseases - and from killer drugs.
For the first time, it has now become apparent that the political will exists to eradicate the single thing that has killed more Kiwis in the past century than diseases such as influenza, smallpox and polio combined. Yes, the cigarette.
The language in New Zealand is no longer about controlling or cutting back smoking. It is about eradication. It is, according to the British Medical Journal, about "the endgame".