Are you living in a dengue cluster?
Read on for the reasons behind the prevalence of dengue in Singapore, shedding light on the timing of these outbreaks and the factors that contribute to its persistence.
Why is dengue prevalent in Singapore?
#1 Tropical climate: Singapore’s hot and humid tropical climate provides the ideal breeding ground for the Aedes mosquito, the primary vector responsible for transmitting the dengue virus. These mosquitoes thrive in stagnant water, which is abundant in Singapore’s climate. The high temperatures accelerate their breeding cycle, which can be as short as one week under optimal conditions.
#2 Persistent mosquito breeding: Dr Borame Sue Lee Dickens from NUS’s Saw Swee Hock School of Public Health points out two key factors influencing dengue prevalence: ongoing mosquito breeding due to environmental features and insufficient removal of breeding sites. These issues apply to all types of residential areas in Singapore.
#3 Virus serotypes: There are four different dengue virus “serotypes” (DEN-1, DEN-2, DEN-3, and DEN-4). Once an individual is infected with one serotype, they develop immunity to it. However, subsequent infections with different serotypes can lead to more severe forms of dengue, such as dengue hemorrhagic fever. The co-circulation of multiple serotypes in Singapore increases the risk of severe dengue cases.
Dengue in Singapore today
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Esta historia es de la edición December 2023 de Expat Living Singapore.
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