 In recent years, local transmission has been seen in Texas, Arizona, California. Gabriela Paz Bailey, head of CDC's dengue branch, says that people who travel to Puerto Rico or other places that are experiencing big dengue surges should be aware of the risk. It's especially dangerous for babies, pregnant women and the elderly. But she says that they're not actually expecting big surges of dengue across the continental U.S. this summer. What they do expect to see is more travel related cases and small chains of transmission related to them.