Definition

Noun: * The RNA virus that causes Lassa fever, a severe and often fatal hemorrhagic illness. It is an arenavirus primarily transmitted to humans from rodents, specifically the multimammate rat (Mastomy natalensis), through contact with their excreta or contaminated materials.

Usage

The term "Lassa virus" is used specifically to refer to the biological agent responsible for the disease. It is a proper noun and is often capitalized.

Examples

• Scientific Context: "Researchers are studying the genome of the Lassa virus to develop more effective treatments."
• Medical Context: "The hospital has strict isolation protocols for patients suspected of being infected with Lassa virus."
• Public Health Context: "Controlling rodent populations is a key strategy in preventing outbreaks of Lassa virus."

Advanced Usage

• The virus is named after the town of Lassa in Nigeria, where it was first identified in 1969.
• In virology, it is classified within the family and the genus.

Variants and Related Words

• Lassa fever (n): The acute viral hemorrhagic disease caused by infection with the Lassa virus.
  • Example: "Symptoms of Lassa fever can include fever, sore throat, and bleeding."
• Arenavirus (n): The family of viruses to which Lassa virus belongs, characterized by a grainy or sandy appearance under an electron microscope.
  • Example: "Other dangerous arenaviruses include Junin virus and Machupo virus."

Synonyms

• Lassa mammarenavirus (n): The formal taxonomic name for the virus.
  • Example: "The scientific name Lassa mammarenavirus is used in virological classifications."

Related Phrases

• Lassa virus infection (n): The state of being infected by the virus.
  • Example: "Early diagnosis of a Lassa virus infection is critical for patient survival."
• Lassa virus reservoir (n): The natural host or carrier of the virus, which is the multimammate rat.
  • Example: "The primary Lassa virus reservoir is found in parts of West Africa."

Noun

1. the RNA virus that causes Lassa fever