Vanuatu's health ministry says a case of dengue fever has been detected in the capital Port Vila, the first reported case since 2014.
The ministry says the person was infected at the end of May and was being treated at Vila Central Hospital.
The Vanuatu Daily Post reports that the ministry has reconvened its Dengue Early Warning Committee to address the issue as a result of the case.
It says health staff will receive refresher training on dealing with such viruses, mosquito breeding sites will be sprayed, and a public awareness campaign conducted.
The 2014 outbreak infected more than 300 people in a matter of weeks.