CDC expands range of Zika mosquito into parts of Northeast

ATLANTA (AP) — The mosquitoes that can transmit the Zika virus may live in a broader swath of the U.S. than previously thought — but that doesn't mean they'll cause disease here, federal health officials said Wednesday.

Even if the mosquito lives in a certain spot, it has to bite an already infected person in order to spread Zika, or related viruses, to other people.

While most people experience mild or no symptoms, Zika is suspected of causing babies to be born with abnormally small heads and underlying brain damage, after a rash of such cases in Brazil.