Definition of Lassa virus
Lassa virus: The deadly cause of Lassa fever. Lassa virus is a virulent and highly transmissible RNA virus that belongs to the arenavirus group. Lassa virus was discovered in 1969 by a team led by Dr. Jordi Casals-Ariet.
See also: Lassa fever; and Casals-Ariet, Jordi.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 10/9/2012