For the first time the Centers for Disease Control and Prevention is warning people not to travel to an American neighborhood. It's because of the Zika virus.
The CDC says pregnant women and their partners should not go to a small neighborhood in Miami and more warning could follow this one.
So what can we do?
Consumer Reports took a look at the mosquito repellents that offer the best protection from Zika and Kim Posey has the results in the video report above.