Dengue has increased in incidence in recent decades, with WHO recording a ten fold increase between 2010 and 2019 (from 500,000 to 5 million recorded cases). This increase is tied closely to the increasing range of Aedes mosquitoes, which is attributed to a combination of urbanization, population growth, and an increasingly warm climate. In endemic areas, dengue infections peak when rainfall is optimal for mosquito breeding. In October 2023, the first confirmed symptomatic case of locally acquired dengue (i.e. not while travelling) in the US was identified in California.
Dengue has increased in incidence in recent decades, with WHO recording a ten fold increase between 2010 and 2019 (from 500,000 to 5 million recorded cases). This increase is tied closely to the increasing range of Aedes mosquitoes, which is attributed to a combination of urbanization, population growth, and an increasingly warm climate In endemic areas, dengue infections peak when rainfall is optimal for mosquito breeding. In October 2023, the first confirmed symptomatic case of locally acquired dengue (i.e. not while travelling) in the US was identified in California.