A man traveling to the U.S. returning from Liberia was determined to have died of Lassa fever, according to an article published by Reuters. The man went to a New Jersey hospital complaining of a sore throat, fever, and fatigue but did not mention his recent travels. After three days at home, he returned to the hospital where his symptoms worsened and he later died. The infectious disease common in West Africa is less contagious and less fatal than Ebola but still roused concerns since the individual originally showed no symptoms upon arrival at JFK International Airport in New York. The CDC is working diligently to track down all those may have had contact with the traveler.