Elimination: what New Zealand's coronavirus response can teach the world | Michael Baker and Nick Wilson

New Zealand's drive against Covid-19 is showing promise and it is not too late for other countries to follow

Epidemiologists love to evoke the memory of John Snow, who famously advocated removing the handle from the Broad Street pump in London, an action that helped to end a severe outbreak of cholera. In the face of the Covid-19 pandemic we need to take the same kind of decisive action, yet western countries have appeared remarkably slow to do so, despite the advantages of immense scientific knowledge and modern tools of pandemic control.

New Zealand now appears to be the only "western" nation following an articulated elimination strategy with the goal of completely ending transmission of Covid-19 within its borders. The strategy appears to be working, with new case numbers falling. Most cases are now returning travellers, who are safely quarantined at the borders, and the few remaining case clusters in the community are being traced and further spread stamped out. But it is far too soon to claim victory, and the country is remaining under an intense lockdown to support the elimination effort.