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28 Nov, Saturday
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You Should be Looking Out for Dengue Too

It seems odd for dengue to share the front page of online newspapers with COVID-19. The dengue situation is not an issue to be ignored. The National Environment Agency expected this year to have the worst dengue outbreak in Singapore’s history. During the Circuit Breaker period, the incidence of Aedes mosquito larvae detected in homes and common corridors in residential areas increased five-fold. By July this year, the number of dengue cases has also already surpassed last year’s tally. As of 1 September 2020, Tropika Club found that the cumulative number of dengue cases for this year stands at over 27,600, bounding ahead last year’s number of 15,998.


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The Aedes Mosquito

Let’s get to the nitty-gritty. Dengue is spread by several species of female mosquitoes of the Aedes genus, chiefly the Aedes aegypti. You can identify the mosquito can by its distinctive white markings on its legs, and a U-shaped marking on the upper surface of its midsection (the thorax).

Only the female Aedes mosquito bites because it needs the protein for its eggs to develop. The mosquito becomes infective around seven days after it bit a person with the virus. Though they usually bite at dawn and dusk, the mosquito can bite at other times of the day, thus spreading the infection.

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