Dengue has always been around in the tropics and subtropics. "There are around 50 million cases of dengue fever around the world each year according to the Wor

Dengue has always been around in the tropics and subtropics. "There are around 50 million cases of dengue fever around the world each year according to the World Health Organisation (WHO). Of those, about 500,000 people contract severe dengue, which is a potentially life-threatening." [1] It's a nasty disease, but it's no Ebola. [1] http://www.health.qld.gov.au/dengue/info/worldwide.asp http://www.health.qld.gov.au/dengue/info/worldwide.asp