Definition of lassa fever noun from the Oxford Advanced Learner's Dictionary

 

lassa fever

 noun
noun
BrE BrE//ˈlæsə fiːvə(r)//
 
; NAmE NAmE//ˈlæsə fiːvər//
 
[uncountable]
 
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a serious disease, usually caught from rats and found especially in W Africa
See the Oxford Advanced American Dictionary entry: lassa fever