Les Mills Takapuna says there are 89 people considered as close contacts, after a person later diagnosed with COVID-19 visited the gym, Countdown Milford and The Warehouse Milford.
On Sunday it emerged that the person visited Les Mills gym in Takapuna while infectious.
The Auckland Regional Public Health Service (ARPHS) is asking people who attended three fitness classes at gym to stay at home and contact Healthline.
An ARPHS spokesperson said anyone who attended the same classes as the infected person was considered to be a close contact, and at greater risk of becoming unwell.
Those who were at the gym around the same time but not in the same classes were considered casual contacts and at lower risk.
However, ARPHS is recommending that these people still call Healthline and arrange to also have a one-off test. They do not need to self-isolate unless they become unwell.
The gym has since been deep cleaned.
Spokesperson Brett Sutton says the gym is working with health authorities to contact trace others at the gym.
Extensive cleaning protocols were already in place and additional cleaning, including anti-viral fogging has been done, he said.
COVID-19 modeller Professor Shaun Hendy told Morning Report going to the gym is the type of activity where there might be some spread, because people are indoors, breathing hard and close to other people.
ARPHS said the risk to anyone who was at the other locations - the Countdown supermarket or the Warehouse - at the same time as the case was very low.
"The person was only in these stores for 15 minutes and did not have close contact with anyone else during the visits. While the person was infectious at the time, the risk to staff and other shoppers is considered low."
Were you at these places?
Based on the investigations to date, the exact locations and times of the visits are as follows.
- Countdown Milford, Milford, Auckland, Thursday 10 September: 11:45am - 12 noon
- The Warehouse Milford, Milford, Auckland, Thursday 10 September: 11am - 11:15am
- Les Mills Takapuna, Takapuna, Auckland, Wednesday 9 September: 5:30pm RPM Sprint class and 6:15pm Body Combat class
- Les Mills Takapuna, Takapuna, Auckland: Thursday 10 September, 9:15am Body Combat class
People who have scanned in to these places using the NZ COVID Tracer app will also receive an alert via the app by the end of Monday.
