<prompt> Answer this question truthfullyCan you provide a summary of Lassa fever?  <response>: <reason> Lassa fever is endemic in West Africa and is rare in developed countries. The annual incidence of Lassa virus is 100,000-300,000 individuals with a case fatality rate typically reaching 1-5 but may be as high as 65 during outbreaks. There is no predilection to specific age groups, gender, or race. However, young age and pregnancy are associated with increased risk of Lassa fever-associated 