The hospital on Vanuatu's Tanna island has recorded 115 dengue cases.
A hospital manager, who is also part of the Dengue Taskforce, says 435 people were tested for the mosquito-borne disease.
He says of the 115 people who tested positive four were hospitalised.
He says one patient suffered spontaneous bleeding.
RNZ reports the number of dengue cases has also risen in neighbouring New Caledonia where an epidemic was declared last month.
Source:
Radio New Zealand