Covid-19 border cases increase

Covid-19 experts fear Omicron could soon be in community as NZ border cases increase

The highly transmissible variant has rapidly spread around the globe and New Zealand has dodged a community outbreak so far.

But with the escalating number of overseas returnees testing positive, there are fears a new wave of the virus could be out in the community within weeks.

Epidemiologist and University of Otago professor Michael Baker called the variant a "huge threat" and said it was not a matter of if there was an outbreak, but when.