Dengue cases continue to surge in New Caledonia, prompting ongoing concerns and a sustained red alert.
📍 New Caledonia
As of today, May 4th, 2026, New Caledonia is grappling with a significant increase in dengue transmission, with a total of 1,376 confirmed cases reported this year. This represents a worrying escalation since the last PacNet update, and the most recent case was recorded just yesterday, May 2nd. The dominant serotype remains DENV-1, fueling the need for continued vigilance and public health interventions. Health officials have maintained the red alert for DENV-1, emphasizing the importance of preventative measures such as mosquito control and personal protection.
The situation in Samoa is similarly challenging, albeit with a slight downward trend in confirmed infections. EpiWeek 17 data reveals 159 new cases, including 27 confirmed laboratory results, reflecting a modest decline compared to the previous week. Despite this, transmission remains widespread across both Upolu and Savai‘i, and the concerning cumulative death toll stands at nine, with children under 15 being disproportionately affected. The blue alert for both DENV-1 and DENV-2 underscores the severity of the ongoing outbreak.
Meanwhile, Tonga continues to experience dengue transmission following the initial outbreak declared in April. To date, 53 lab-confirmed cases have been reported, with three currently hospitalized, and thankfully no deaths. Children aged 10-14 are particularly vulnerable, and the majority of infections are originating from Tongatapu island. The red alert for DENV-2 remains active, demanding continued monitoring and targeted responses.
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Dengue NewCaledonia Samoa Tonga Micronesia TropicalDisease PublicHealth OutbreakResponse