A brief description of the epidemiology of dengue in Dili, Timor-Leste, 2018-2022

Filipe de Neri Machado, Anthony D.K. Draper, Frederico Bosco Alves Dos Santos, Marcelo Amaral Mali, Ari J. Pereira Tilman, Endang Soares da Silva, Noel Gama Soares, Nevio Sarmento, Maria A.V. Niha, Ana Fatima Soares, Abdoulie Taal, Joshua R. Francis, Jennifer Yan, Megge Miller, James Flint

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Abstract: Dengue virus (DENV) infection causes 390 million infections per year and 40,000 deaths globally. It is endemic in many countries in Asia, Africa, the Americas, the Caribbean, and Oceania. Dengue is endemic in Timor-Leste year-round, but peak transmission occurs during the rainy season. We briefly describe the epidemiology of DENV in the Municipality of Dili between 2018 and 2022. There were 6,234 cases notified, with a mean annual incidence rate of 330 cases per 100,000 population. There were 55 deaths (case fatality rate 0.9%). The peak annual incidence (3,904 cases) occurred in 2022 after an outbreak was declared in January of that year; this outbreak included 760 cases of dengue haemorrhagic fever and 35 deaths. The number of outbreak cases requiring hospital treatment exceeded the usual capacity, but facilities established for coronavirus disease 2019 (COVID-19) isolation and treatment were repurposed to meet this demand. Existing strategies of vector control, minimising breeding sites and promoting early presentation for treatment should continue, as should the utilisation of surveillance systems and treatment facilities established during the COVID-19 pandemic. However, dengue incidence remains high, and other dengue control strategies-including the deployment of Wolbachia-infected mosquitoes-should be considered in Timor-Leste.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalCommunicable diseases intelligence (2018)
Publication statusPublished - 10 Apr 2024

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© Commonwealth of Australia CC BY-NC-ND.


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