chikungunya

Global transportation and trade, compounded by people continuing to alter the local environment, has led to the spread of mosquitoes around the world. But how will these insects deal with a warming world?

The Lee County Mosquito Control District released thousands of mosquitoes in Fort Myers to bring down the population.

While some Americans worried that Ebola would spread around the U.S., a new mosquito-borne virus flew right in. It sickened more than 2,000 Americans and nearly a million people across the Caribbean.

It's called chikungunya. And it causes severe joint pain that can last for months. A quarter of a million people have caught the virus in the Caribbean. So how big a problem will it be stateside?