Diseases

St. Louis Encephalitis

A viral encephalitis caused by the St. Louis encephalitis virus (ENCEPHALITIS VIRUS, ST. LOUIS), a FLAVIVIRUS. It is transmitted to humans and other vertebrates primarily by mosquitoes of the genus CULEX. The primary animal vectors are wild birds and the disorder is endemic to the midwestern and southeastern United States. Infections may be limited to an influenza-like illness or present as an ASEPTIC MENINGITIS or ENCEPHALITIS. Clinical manifestations of the encephalitic presentation may include SEIZURES, lethargy, MYOCLONUS, focal neurologic signs, COMA, and DEATH. (From Adams et al., Principles of Neurology, 6th ed, p750)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A viral encephalitis caused by the St. Louis encephalitis virus (ENCEPHALITIS VIRUS, ST. LOUIS), a FLAVIVIRUS. It is transmitted to humans and other vertebrates primarily by mosquitoes of the genus CULEX. The primary animal vectors are wild birds and the disorder is endemic to the midwestern and southeastern United States. Infections may be limited to an influenza-like illness or present as an ASEPTIC MENINGITIS or ENCEPHALITIS. Clinical manifestations of the encephalitic presentation may include SEIZURES, lethargy, MYOCLONUS, focal neurologic signs, COMA, and DEATH. (From Adams et al., Principles of Neurology, 6th ed, p750)

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

Loading graph…

Drag nodes to rearrange; hover to trace links; click a node to open its page.

MeSH Record

Synonyms

12 entry terms
  • Encephalitis, Saint Louis
  • Encephalitis, St. Louis
  • Encephalitis, Viral, St. Louis
  • Lethargic Encephalitis, Type C
  • Saint Louis Encephalitis
  • St. Louis Viral Encephalitis
  • Type C Lethargic Encephalitis
  • Meningoencephalitis, St. Louis
  • St. Louis Meningoencephalitis
  • Louis Meningoencephalitides, St.
  • Meningoencephalitides, St. Louis
  • St. Louis Meningoencephalitides

MeSH Record

Aspects Covered

36 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, transmission, urine, veterinary, virology.

MeSH Hierarchy

Tree Numbers

  1. C01w.207w.245w.340w.300w.550w
  2. C01w.207w.399.750w.300w.550w
  3. C01w.920.313.156w.350w
  4. C01w.920.852w.500w.350w
  5. C01w.925w.081.343w.350w
  6. C01w.925w.182w.525w.300w.300w
  7. C01w.925w.782.310w.350w
  8. C01w.925w.782.350.250.450w
  9. C10w.228w.140w.430w.520.750w.300w.550w
  10. C10w.228w.228w.245w.340w.300w.550w
  11. C10w.228w.228w.399.750w.300w.550w
  12. C10w.586.250w.520.750w.300w.550w

MeSH Record

NLM Classification

WC 542

AMA Style

References

  1. National Library of Medicine. St. Louis Encephalitis. Medical Subject Headings (MeSH). 2026. Unique ID D004674. http://id.nlm.nih.gov/mesh/2026/D004674
  2. St. Louis Encephalitis. In: Wikipedia. https://en.wikipedia.org/wiki/Saint_Louis_encephalitis
  3. St. Louis Encephalitis. In: Wikidata. https://www.wikidata.org/wiki/Q567660