An Auckland based MIQ worker has returned a positive result for Covid-19 late on Friday afternoon and is currently in isolation.

The test was taken as part of routine border worker surveillance testing.

Whole genome sequencing is being carried out to determine what variant the infection is and the results will be reported in Sunday's 1pm Covid-19 update.

Investigations are underway to determine if the infection originated from the community or the facility.

The worker is fully vaccinated and up-to-date with regular testing.

Household contacts of the MIQ worker all returned negative tests on Friday night.

All Managed Isolation and Quarantine facilities follow very strict Infection Prevention and Control (IPC) measures developed by the Ministry of Health to manage the risks of spreading Covid-19, and workers in MIQ facilities undergo regular routine testing.