Why the Zika travel warning in Florida is so narrow. And what it means for rest of U.S.


A one-square-mile area north of downtown Miami, marked by three streets and a highway, is a Zika hot zone that public health officials say pregnant women should avoid. Many people don’t understand how those boundaries were picked as part of an unprecedented travel advisory from the Centers for Disease Control and Prevention. And they want to know why the advisory isn’t broader. Continue reading.