The Cook Islands secretary of health, Josephine Herman, said the country is holding and containing the latest outbreak of dengue.
She saids to date there are 50 cases of type 1 dengue in the Cooks.
Of these, 22 people have had the virus confirmed after analysis in New Zealand, and the remaining 28 have been identified as likely to have dengue after clinical diagnosis, Dr Herman said.
She also said that while health authorities anticipate more victims, extensive efforts are being made to ensure the spread is minimised.