Resurgence of previously dominant dengue virus strain could lead to surge in cases: NEA

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There are currently 48 active dengue clusters, 13 of which are large clusters with 10 or more cases. Read more at straitstimes.com.

SINGAPORE - There is a risk of a surge in dengue cases in the coming months, as mosquitoes have been rapidly spreading a previously dominant virus strain, DenV-1.

“The rise in proportion of a previously less prevalent dengue virus serotype is of concern, as this has historically been associated with a surge in dengue cases months later,” NEA said. DenV-3 was a less common strain that many residents were vulnerable to, due to lack of exposure and immunity. NEA said: “There is a risk of a surge in dengue cases as Denv-1 gains dominance against a backdrop of high weekly dengue cases, several large and persistent dengue clusters, and high Aedes mosquito populations in many places.”

 

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