Term: lassa fever: an acute contagious viral disease of central western Africa; characterized by fever and inflammation and muscular pains and difficulty swallowing; can be used as a bioweapon
Broader: hemorrhagic fever: a group of illnesses caused by a viral infection (usually restricted to a specific geographic area); fever and gastrointestinal symptoms are followed by capillary hemorrhage | Unrelated: bullhead: any of several common freshwater catfishes of the United States