Before Thomas Eric Duncan died from Ebola last week in Dallas, he’d spent nine days in intensive isolated care at Texas Health Presbyterian Hospital at an estimated cost of half a million dollars. The U.S. is facing bigger bills for sending troops to West Africa and implementing airport screenings to fight the disease. But the biggest economic impact will be felt in West Africa, where Ebola could cost more than $30 billion. We look at the economic tolls of a deadly virus.