| umls-concept:C0023093 | skos:definition | CSP: etiologic agent of Lassa fever; common infective agent in humans in West Africa.,MSH: A species of ARENAVIRUS, part of the Old World Arenaviruses (ARENAVIRUSES, OLD WORLD), and the etiologic agent of LASSA FEVER. LASSA VIRUS is a common infective agent in humans in West Africa. Its natural host is the multimammate mouse Mastomys natalensis. | lld:umls |
