Lassa Virus, Tem #1
by Science Source
Title
Lassa Virus, Tem #1
Artist
Science Source
Medium
Photograph - Photograph
Description
Color-enhanced transmission electron micrograph (TEM) depicting ultrastructural details of three Lassa virus virions. The virion in the middle has completely budded from its host cell, while the two other particles are in the process of budding. Lassa virus, a member of the family Arenaviridae, is a single-stranded RNA virus that is zoonotic, or animal-borne, and can be transmitted to humans. The illness was discovered in 1969 when two missionary nurses died in Nigeria, West Africa. In areas of Africa where the disease is endemic, Lassa fever is a significant cause of morbidity and mortality. While Lassa fever is mild or has no observable symptoms in about 80% of people infected with the virus, the remaining 20% have a severe multisystem disease. Lassa fever is also associated with occasional epidemics, during which the case-fatality rate can reach 50%.
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July 31st, 2019
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