Health data released on Friday reported 4,596 cases since the outbreak started in December 2021, with the majority in the built-up and populated Dili municipality.

Dom Alexio administrative post is the most affected, accounting for 1,921 of the 2,481 cases in Dili.

Authorities reported 1,451 dengue fever cases in Timor-Leste during 2020 and 901 in 2021.

The threat of dengue fever infection exists nationwide in Timor-Leste and is typically highest December-April.

A dengue fever vaccine is available in some countries. It is only recommended for individuals with a history of dengue infection and in a country with high dengue fever burden.

Dengue fever transmission happens through the bite of infected mosquitoes. Symptoms of dengue fever include a sudden onset of fever and at least one of the following: severe headache, severe pain behind the eyes, muscle and/or joint pain, rash, easy bruising, and/or nose or gum bleeding.

Symptoms typically appear 5-7 days after being bitten but can also develop up to 10 days after exposure.

Dengue fever can progress to a more severe form known as dengue haemorrhagic fever (DHF). DHF can be fatal if it is not recognized and treated promptly.

Health officials continue to urge people do their part to remove stagnant water from our environment and maintain good housekeeping, to deprive mosquitoes of potential breeding habitats.