In the last two days, there have been eight new positive cases of Covid-19 recorded in managed isolation, the Ministry of Health has said in a statement.

There are also no new COVID-19 cases in the community to report for the 21st day in a row.

It is the first Ministry press release since Friday. The seven-day rolling average of new cases detected at the border is four. 

The new cases have come from Ireland, Philippines, Papua New Guinea, Sweden, India, Singapore, Pakistan and Qatar.

There is also one new historical case to report, which is not considered to be currently infectious.

The number of previously reported cases that have now recovered is six. The total number of active cases in New Zealand today is 58.

Our total number of confirmed cases is 2,097.

Since 1 January 2021, there have been 40 historical cases, out of a total of 286 cases.

It comes as Cabinet prepares to discuss a quarantine-free trans-Tasman bubble on Monday, but Prime Minister Jacinda Ardern has said she doesn't want to release a timeline until a date firms up.

Only one visitor from Australia so far this year tested positive for Covid-19 while in managed isolation, and health experts have described a trans-Tasman bubble as very low risk.

This week Covid-19 Response Minister Chris Hipkins said airlines and airports would need at least three weeks to put practices in place so a bubble could operate safely.

He said many issues remain unresolved, including when the bubble should be suspended, what happens to stranded Kiwis if it is suspended, the testing requirements in both countries, the exit-visa requirements for Australians coming here, and the contact-tracing compatibility of both countries' systems.

Including other countries in the bubble is also a consideration, and people are already allowed to travel to New Zealand from the Cook Islands and Niue without having to quarantine.

What to do with empty MIQ rooms is also an issue, and health experts have floated the idea of closing them rather than allowing travellers from higher-risk countries to use them.

Hipkins has said the Government is considering options, but its unlikely to open up all of the 30 to 40 per cent of MIQ capacity to travellers from countries other than Australia because that would increase risk.

A bubble is also highly anticipated by the struggling tourism industry hoping an influx of Australian visitors will ease the loss of foreign tourists.

On Friday the Ministry of Health blamed a "process issue" for the over-reporting of this country's active Covid cases.

Health officials said on Wednesday that there were 97 active cases in New Zealand - but on Friday that number was revised down to 55.

"Some recovered cases had been discharged from a managed quarantine facility but their status was not updated from active to recovered in our reporting systems," the ministry said in a statement.

"It has been confirmed that all positive cases were managed appropriately and there has been no risk to the community."

Friday's 10 cases in MIQ were travellers from America, Pakistan, Papua New Guinea and Portugal.