New Zealand has recorded one new confirmed case of Covid-19, after three days in a row of no cases.
The new case is linked to the Marist College cluster in Auckland and was identified through follow-up testing of the school community.
The person who tested positive first had symptoms nearly two months ago and had a negative test previously.
The result is considered a 'weak positive' and the person, who has been in isolation through the lockdown period, is not considered infectious now.
Marist College says it still considers it to be safe for students to return when the school opens on Monday.
To help us understand how this works, microbiologist Dr Siouxsie Wiles talks to Lisa Owen.