Singapore has witnessed an alarming increase in weekly dengue cases, surpassing the 300-mark for the first time this year. According to data from the National Environment Agency (NEA), between September 10 and September 23, there were 330 and 303 reported cases, respectively. As of the latest update, 124 new cases have been reported between Sunday and Tuesday. These figures have contributed to a total of more than 7,000 dengue cases in Singapore in 2023.
Tragically, as of June, Singapore has recorded two deaths in 2023 due to local dengue infections, as reported by NEA’s quarterly dengue surveillance data. This surge follows a substantial outbreak in 2022, with over 32,000 cases reported, marking the second-highest number of cases in a year since the record-breaking 35,000 cases in 2020.
Currently, there are over 60 active dengue clusters, with nine classified as red-alert clusters, indicating the presence of 10 or more cases within each cluster. Notable red-alert clusters include Science Park Drive, Club Street, and Lentor Loop.
One concerning factor contributing to this surge in dengue cases is the increase in the proportion of the previously less prevalent dengue virus serotype 1 (DENV-1). Historically, this serotype has been associated with subsequent surges in dengue cases months later, as noted on the NEA website.
The months from May to October typically witness heightened dengue transmission in Singapore. This trend is attributed to the accelerated development of the Aedes mosquito vector and the faster multiplication of the dengue virus within mosquitoes during these warmer months.
This surge in dengue cases serves as a critical reminder for both healthcare professionals and the public to remain vigilant in implementing preventive measures and raising awareness about dengue prevention and control in the community. Given the potential for sustained high dengue transmission, efforts to combat the disease must continue in earnest, with a focus on mosquito control and public education.
DENV-1: dengue virus serotype 1; NEA: National Environment Agency
Link to original report: https://www.straitstimes.com/singapore/health/weekly-dengue-cases-in-singapore-exceed-300-over-past-2-weeks
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