Health and Fitness Lassa Fever Reported in U.S. Traveler Returning from West Africa, April 4, 2014 by Gary Kopycinski on April 4, 2014 Gary Kopycinski Author More in Health and Fitness: On Hantavirus, Park Forest Officials Urge Caution May 18, 2026 Rep. Kelly Condemns FDA Approval of Flavored E-Cigarettes May 6, 2026 Park Forest Aligns With Illinois Guidance on Childhood Vaccines Amid Federal Changes January 11, 2026 Contact investigation under way; risk to other travelers considered extremely low