Kim Medley | St. Louis Public Radio

Kim Medley

An Asian tiger mosquito
Centers for Disease Control

Biologists at Washington University have discovered that an invasive species of mosquito in the U.S. has adapted to colder climates by laying eggs that can survive harsh winters.

Researchers at Wash U’s Tyson Research Center and the University of Central Florida wanted to know how the Asian tiger mosquito can survive in northern areas like Iowa and New Jersey. The species first appeared in Texas in the mid-1980s and can transmit the West Nile, dengue, Zika and chikungunya viruses.