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Here Are Some Other Emerging Diseases to Keep You Up at Night


A close-up look at a female Aedes albopictus mosquito as it’s about to feed.
Photo: Pablo Cabrera/CDC

The infection: Dengue is caused by four types of the dengue virus, which are spread by Aedes aegypti and Aedes albopictus mosquitoes.

Its threat potential: The reported incidence of Dengue has increased dramatically over the past two decades, and regular outbreaks have been documented in previously unestablished areas of Europe and the Americas. A vaccine does exist, but it isn’t recommended for people who haven’t been infected before, since it may raise the risk of severe dengue in those never exposed to any type of the virus.

Symptoms and treatment: About a quarter of victims will experience symptoms, which include fever, muscles aches, eye pain, and rashes. Surviving one type of dengue infection will not confer protection to the others, however, and a second infection increases the risk of a severe, life -threatening illness that can kill within hours.


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