Experts: Dengue tends to increase during El Nino years

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PETALING JAYA: The weather will be hotter and drier this year – making it ideal for the Aedes mosquito and the dengue fever it spreads, say experts.

Historically, they said, climate played a part in dengue transmission and higher cases were expected in 2023.

“Since dengue is endemic, the environment, especially temperature, is correlated to the Aedes population. That is, an increase in temperature sees an increase in Aedes mosquitoes.”“Normally, dengue cases increase during El Nino years. Since we are going to El Nino-Southern Oscillation neutral for 2023, dengue cases are expected to increase compared with 2021 and 2022, which overall, were cooler years.El Nino will bring about dryer and warmer weather.

On how one can learn from the Covid-19 pandemic to manage dengue, which is endemic in several countries, he said this could be done through intensive health education, especially in hotspots.Dr Zainal said regular checks at Aedes breeding grounds in housing and industrial sites were also important.

 

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