The virus took its time crossing the Atlantic. And when the first patient suffering from Middle East respiratory syndrome (MERS) finally did turn up in the U.S., he made his way, improbably, to Munster, Ind., population 23,413. A week later a second appeared, flying from the Kingdom of Saudi Arabia to the home of the Magic Kingdom—Orlando, Fla. Both men are doctors who work in Saudi hospitals, the best places in the world right now to avoid if you do not want to catch what is officially known as the MERS coronavirus (MERS-CoV). For both, their travel involved multiple legs—two flights plus an intercity bus for the Indiana patient and four flights for the Florida patient—to get to their destinations, sharing the air with several hundred fellow passengers along the way.