A staff member at Auckland Hospital has tested positive for Covid-19.
The Auckland DHB says the fully-vaccinated worker tested positive on Saturday.
The DHB says it then "immediately activated plans for this situation to prevent the spread of the virus within the hospital".
"We have robust infection prevention and control measures in place, which includes mask wearing on-site. We work closely with occupational health and public health to keep everyone safe, as well as continue to provide high-quality care to people that need it.
"We worked quickly to identify all contacts and carry out testing on-site for patients and staff. We have had no further positive results reported for patients and staff from this exposure so far," said Alex Pimm, Auckland DHB's Covid-19 incident controller.