Zika virus continues to spread across Latin America and the Caribbean, also. The latest travel warning from the U.S.Centers for Disease Control and Prevention came for the Bahamas. It's causing a serious epidemic in Puerto Rico, a U.S. territory and experts fully expect small outbreaks in Texas, Louisiana and other Gulf coast states that are home to the Aedes aegypti mosquito that transmits the virus.
"We wouldn't be surprised if we saw more local cases and more clusters. It is the middle of mosquito season," Centers for Disease Control and Prevention Director Dr. Thomas Frieden told NBC News.
In all, 42 people have caught Zika in Florida in the three outbreaks in Miami Beach, Pinellas and the Wynwood neighborhood north of Miami. Travelers from New York, Texas and Taiwan have been infected in Florida, and more than 2,200 travelers have carried Zika to the U.S. from elsewhere.