The Ministry of Health is advising people who attended the Tool concert on Friday to be aware of the symptoms of COVID-19 after an attendee tested positive for the virus.
This is the fourth case of coronavirus confirmed in New Zealand and the person is the partner of the woman who tested positive for the virus on Wednesday.
Both are now in isolation and are not in need of hospital-level care.
People who attended the event on February 28 at Spark Arena are being told to look out for the symptoms of coronavirus which include fever, coughing and breathing difficulties.
Other symptoms include headaches, muscle pain and fatigue.
It is not known if the person was contagious at the time of the concert, but if so around 100 people may have been exposed.
People who attended the concert in the general admission standing area are considered casual contacts and everyone else is believed to be low risk.
The person was standing to the front-left side during the concert.
Those who were in close contact with the person have now been contacted by Spark Arena and Ticketmaster.
The Ministry of Health is encouraging anyone who is experiencing symptoms after attending the concert to self-isolate and call the dedicated Healthline number: 0800 358 5453 for more information on how to proceed.
If you are experiencing difficulty breathing, seek immediate medical attention.
If you are not currently showing any symptoms, remain cautious as symptoms are expected to show two to 10 days, and it has only been seven days since the concert.
Those who do not have any symptoms are also asked not to sure the Healthline number to avoid stopping the people who do need it from getting help. If you are looking for information instead use www.health.govt.nz.
Currently more than 93,000 people have been affected worldwide by coronavirus and there have been 3200 deaths.
It is primarily spread through droplets in the air when someone infected with the virus coughs or sneezes.