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Updated: Jun 2, 2026

In Vivo Imaging Systems (IVIS) Detection of a Neuro-Invasive Encephalitic Virus
Published on: December 2, 2012
West nile virus neuroinvasive disease
1Division of Pediatric Infectious Diseases, Children's National Medical Center/Children's Research Institute, George Washington University School of Medicine, 111 Michigan Avenue NW, Washington, DC, 20010, USA, rdebiasi@cnmc.org.
West Nile virus (WNV) causes widespread neuroinvasive disease in North America. This review details WNV epidemiology, clinical features, and pathogenesis, highlighting the need for targeted therapies.
Area of Science:
- * Epidemiology and Public Health
- * Neurovirology
- * Infectious Diseases
Background:
- * West Nile virus (WNV) emerged in North America in 1999, causing a major arboviral encephalitis epidemic.
- * WNV remains the leading cause of epidemic meningoencephalitis in North America.
- * West Nile virus neuroinvasive disease (WNND) affects less than 1% of infected individuals, presenting as meningitis, encephalitis, or poliomyelitis.
Purpose of the Study:
- * To review the epidemiology of WNV in North America over the past decade.
- * To summarize the clinical characteristics of WNND, including diagnostic findings and outcomes.
- * To explore advances in understanding WNV pathogenesis and potential therapeutic targets.
Main Methods:
- * Comprehensive literature review of WNV epidemiology and clinical presentations.
- * Analysis of reported WNND cases in the United States (1999-2009).
- * Synthesis of current research on WNV pathogenesis and treatment strategies.
Main Results:
- * Over 12,000 WNND cases reported in the US between 1999 and 2009, with peaks in 2002 and 2003.
- * Detailed discussion of WNND clinical features, laboratory/radiographic findings, risk factors, morbidity, and mortality.
- * Overview of recent progress in understanding virus-host interactions in WNND pathogenesis.
Conclusions:
- * WNV continues to pose a significant public health threat in North America.
- * Understanding WNV epidemiology and clinical manifestations is crucial for effective management.
- * Further research into WNV pathogenesis may lead to the development of specific therapies.
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Encephalitis l: Introduction
Encephalitis ll: Pathophysiology
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Poliomyelitis

