Map shows where coronavirus cases are in NZ

A new map shows the number of COVID-19 coronavirus cases in New Zealand - and the most infected regions.

As of Saturday, March 21, there have been 52 confirmed cases here - an increase of 13 since Friday.

Four of the new cases are in Wellington, one is in Waikato, one in Taupo, two in Manawatu, three in Auckland and two in Nelson.

Two of them have yet to be linked to travel from overseas, meaning they are possible examples of community transmission - one in Auckland, one in Wellington.

"Most of these cases are travel-related, but as yet in two instances, no link to overseas travel has been ascertained, and we continue to investigate. At this point, we cannot rule out a risk of community transmission in these cases," Director-General of Health Ashley Bloomfield says.

"We always knew that cases apparently not linked to travel would happen, and we are prepared for that."

New Zealand has now implemented a four-level alert system for COVID-19, and we're currently at level 2.

This means the disease is contained, but the risks are growing because we have more cases.

Border measures have been increased and events have been cancelled, and the public is asked to work from home, cancel unnecessary travel and move to reduce our contact with one another.

For the latest information on current cases of COVID-19 in New Zealand, please see the Ministry of Health's site.