Ashley Bloomfield expects new restrictions on people flying from Western Australia to New Zealand will only affect a very small number of people.
Three new Covid-19 cases linked to a managed isolation facility in Perth ground travel to a halt.
Flights to and from Western Australia will resume today, but any New Zealanders still there who have visited a location of interest cannot get on a plane immediately.
They need to wait fourteen days from the date of exposure.
Director-General of Health Dr Ashley Bloomfield told Morning Report he does not expect many people trying to get into the country will be affected.
"There are a lot a lot of locations of interest, but I'd be very surprised if there is possibly anybody or even more than a few people who may have A, been at one of those locations of interest at the time of interest and B, be planning to travel to New Zealand within the next 14 days."
