Researchers have a way to scope out areas that may be suitable for the invasive Aedes scapularis, a mosquito capable of transmitting yellow fever virus.

A 19th-century outbreak of yellow fever in New Orleans created an elite class while it also "exacted a devastating social cost for large swaths of society."

Places where tropical diseases are now unknown—Canada and parts of Northern Europe, for instance—are due to become prime real estate for mosquitoes.