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In Vitro Analysis of Myd88-mediated Cellular Immune Response to West Nile Virus Mutant Strain Infection

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Poliomyelitis-like syndrome in a child with West Nile virus infection.

Gloria P Heresi¹, Pedro Mancias, Lynette J Mazur

¹Division of Infectious Diseases, UT-Medical School at Houston, Houston, TX, USA. Gloria.P.Heresi@uth.tmc.edu

The Pediatric Infectious Disease Journal

|August 6, 2004

Summary

West Nile virus (WNV) central nervous system infections are rare in US children. This case study details a child presenting with poliomyelitis-like symptoms, where WNV was the sole identified pathogen, a presentation not previously linked to WNV in pediatric cases.

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Area of Science:

Neurology
Infectious Diseases
Pediatrics

Background:

West Nile virus (WNV) neurological infections are infrequent in pediatric populations within the United States.
Poliomyelitis-like presentations are typically associated with poliovirus infection.

Observation:

A pediatric patient presented with acute flaccid paralysis and other symptoms mimicking poliomyelitis.
Extensive diagnostic workup was performed to identify the causative agent.

Findings:

West Nile virus (WNV) was identified as the sole pathogen in the cerebrospinal fluid and serum of the affected child.
The clinical presentation was indistinguishable from paralytic poliomyelitis.

Implications:

This case expands the known clinical spectrum of West Nile virus (WNV) neuroinvasive disease in children.
Clinicians should consider WNV in the differential diagnosis of acute flaccid paralysis in children, especially in endemic areas.
Further research is needed to understand the pathogenesis of WNV-associated poliomyelitis-like illness in pediatric patients.