An alert has been issued in French Polynesia after a person has been diagnosed with Type 2 dengue.
The diagnosis was made on the island of Raiatea and marks the first type 2 infection since 2000.
The health authorities say the population has little immunity and efforts need to be made to stop the spread of the mosquito-borne disease.
They have called for mosquito breeding sites to be eliminated and for people to use repellents.
Mosquito management in the Pacific could benefit from new technology tools. Audio
Samoa's health ministry says 110 cases of dengue fever were confirmed over the Christmas and New Year period, but there have been no further deaths.
A seven-year-old boy in French Polynesia has died of dengue - the territory's first fatality from the mosquito-borne disease this year.
The Secretariat of the Pacific Community is closely monitoring dengue outbreaks around the Pacific.
Health authorities in French Polynesia say type-2 dengue no longer poses a threat to the community.
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