The Ministry of Health says all confirmed and probable cases of swine flu in New Zealand involve people who have now recovered.
The number of confirmed and probable cases has remained unchanged for the past five days at seven and 12 respectively, according to the latest update issued by the ministry on Thursday.
There are also 41 suspected cases - down eight since Wednesday - and an estimated nine people in isolation.
Canterbury District Health Board says there continues to be no confirmed cases in the South Island, but it is still too early to know how the virus will behave in the long term.
The Health Ministry says 33 countries have officially reported 5728 cases. It says 61 people have died worldwide as a result of the virus.