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Encyclopedia > St. Louis Encephalitis
St. Louis Encephalitis Virus
Virus classification
Group: Group IV ((+)ssRNA)
Family: Flaviviridae
Genus: Flavivirus
Species: St. Louis Encephalitis Virus

St. Louis Encephalitis a disease caused by the mosquito borne St. Louis Encephalitis virus. St. Louis encephalitis virus is related to Japanese encephalitis virus. This disease mainly affects the United States, occasional cases have been reported from Canada and Mexico. Viruses can be classified in several ways, such as by their geometry, by whether they have envelopes, by the identity of the host organism they can infect, by mode of transmission, or by the type of disease they cause. ... An RNA virus is a virus that either uses RNA as its genetic material, or whose genetic material passes through an RNA intermediate during replication. ... Genera Flavivirus Pestivirus Hepacivirus The Flaviviridae are a family of viruses that infect mammals. ... Species see text Flavivirus (also Japanese Encephalitis Antigenic Complex) is a genus of the family Flaviviridae. ... This article is about the insect; for the WWII aircraft see De Havilland Mosquito. ... Japanese Encephalitis is a mosquito borne virus from the family Flaviviridae. ... The United States of America — also referred to as the United States, the U.S.A., the U.S., America, the States, or (archaically) Columbia—is a federal republic of 50 states located primarily in central North America (with the exception of two states: Alaska and Hawaii). ... Canada is a sovereign state in northern North America, the northern-most country in the world, and the second largest in total area. ... The United Mexican States or Mexico (Spanish: Estados Unidos Mexicanos or México; regarding the use of the variant spelling Méjico, see section The name below) is a country located in North America, bordered to the north by the United States of America, to the southeast by Guatemala and Belize, to...


Mosquitoes, from the genus Culex, become infected by feeding on birds infected with the St. Louis encephalitis virus. Infected mosquitoes then transmit the St. Louis encephalitis virus to humans and animals during the feeding process. The St. Louis encephalitis virus grows both in the infected mosquito and the infected bird, but does not make either one sick. Only infected mosquitoes can transmit St. Louis encephalitis virus. Once a human has been infected with the virus it is not transmissible from that individual to other humans. Orders Many - see section below. ...


The majority of infections result in mild illness, including fever and headache. When infection is more severe the person may experience headache, high fever, neck stiffness, stupor, disorientation, coma, tremors, occasional convulsions and spastic paralysis. Fatality ranges from 3-30%, aged people are more likely to have a fatal infection. Fever is also the name of an album by Kylie Minogue. ... A headache is a condition of mild to severe pain in the head; sometimes upper back or neck pain may also be interpreted as a headache. ... For other meanings of the word coma, especially in astronomy, see coma (disambiguation) In medicine, a coma is a profound state of unconsciousness, which may result from a variety of conditions including intoxication (drug, alcohol or toxins), metabolic abnormalities (hypoglycemia, hyperglycemia, ketoacidosis, etc. ... Paralysis is the complete loss of muscle function for one or more muscle groups. ...

Enlarge
Human incidence of St. Louis encephalitis in the Unites Sates, 1964-1998

In the United States an average of 128 cases of St. Louis encephalitis are recorded annually. In temperate areas of the United States, St. Louis encephalitis cases occur primarily in the late summer or early fall. In the southern United States where the climate is milder St. Louis encephalitis can occur year round. The United States of America — also referred to as the United States, the U.S.A., the U.S., America, the States, or (archaically) Columbia—is a federal republic of 50 states located primarily in central North America (with the exception of two states: Alaska and Hawaii). ...


There is no vaccine or any other treatments specifically for St. Louis encephalitis virus. A bottle and a syringe containing the influenza vaccine. ...


Reference


  Results from FactBites:
 
MedlinePlus: Encephalitis (251 words)
Meningitis and Encephalitis (National Institute of Neurological Disorders and Stroke)
Encephalitis (Mayo Foundation for Medical Education and Research)
The primary NIH organization for research on Encephalitis is the National Institute of Neurological Disorders and Stroke
  More results at FactBites »

 
 

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