Travel safety tips for Americans visiting Mexico this summer Fox News Digital spoke with Sandra Awodele, the creator behind COI Traveler, about what Americans should be wary of ahead of their summer travels to Mexico. NEW You can now listen to Fox News articles! The U.S. Centers for Disease Control and Prevention (CDC) has issued a warning of a "circulating poliovirus" in over 30 countries. The "Level 2: Practice Enhanced Precautions" alert was published earlier this week. "Before any