No new community cases; 1 new case of COVID-19 in managed isolation 20 May

There are no new cases of COVID-19 to report in the community in New Zealand today.

There is one new case to report in recent returnees in managed isolation facilities since the Ministry’s last update yesterday.

The seven-day rolling average of new cases detected at the border is two.

Two previously reported cases have now recovered. The total number of active cases in New Zealand today is 24.

Our total number of confirmed cases is 2,303.

Since 1 January 2021, there have been 61 historical cases, out of a total of 486 cases.

A previously reported case has now been reclassified as “historical” and has been added to the historical case tally.

New border cases

Arrival date



Positive test day/reason

Managed isolation/

quarantine location

17 May



Day 1 / routine


Wastewater test results update

Wastewater testing continues to be a part of New Zealand’s testing and surveillance strategy in the fight against COVID-19. Recently, weak positive results have been detected in Wellington, Christchurch, Rotorua and Queenstown. The Ministry’s assessment of these results is that there is a low risk to the New Zealand community.

As per usual process, subsequent testing has been undertaken from which Queenstown and Wellington have returned negative results. Further testing in Christchurch and Rotorua is underway.

The Ministry’s current assessment remains that the weak positive results are likely from recent positive cases in managed isolation or due to recently recovered cases who are not infectious but continue to shed the virus after returning home or while travelling. There is no risk of infection from COVID-19 in wastewater.

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