Director-General of Health Ashley Bloomfield said there were no new cases to report from managed isolation.
The one new case that remains under investigation is in addition to the one case yesterday that is being investigated.
"But in both cases we feel quite confident that they will be linked to the outbreak."
He said 54 people linked to the cluster have been moved to a quarantine facility, including 24 of the people who have tested positive.
The seven new cases reported today bring the total number of confirmed cases to 1258.