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West Nile virus infection: a pediatric perspective
Edward B Hayes1, Daniel R O'Leary
1Arbovirus Disease Branch, Division of Vector-Borne Infectious Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado 80522, USA. ebh2@cdc.gov
Pediatrics
|May 4, 2004
Summary
West Nile virus (WNV) can spread through mosquito bites, blood transfusions, organ transplants, and potentially in utero or via breast milk. Early diagnosis and prevention, including mosquito control and blood screening, are crucial for public health.
Area of Science:
- Virology
- Public Health
- Pediatrics
Background:
- West Nile virus (WNV) emerged as a significant public health concern in the Western Hemisphere.
- The 2002 North American epidemic highlighted previously unrecognized WNV transmission routes.
Purpose of the Study:
- To review current knowledge on WNV transmission mechanisms.
- To summarize clinical manifestations, diagnostic methods, and prevention strategies for WNV infection, with a pediatric focus.
Main Methods:
- Review of recent scientific literature and case reports on WNV.
- Analysis of WNV transmission, clinical presentation, diagnosis, and prevention.
Main Results:
- WNV transmission confirmed via mosquito bites, blood transfusions, organ transplants, and potential mother-to-child transmission (in utero, breast milk).
- WNV causes a spectrum of illness, from asymptomatic infection to severe neuroinvasive disease (meningitis, encephalitis, paralysis).
- While severe WNV disease is more common in adults, pediatric neuroinvasive cases were reported.
Conclusions:
- WNV transmission routes are more diverse than previously understood.
- Early diagnosis through serological or molecular detection is vital.
- Prevention strategies include personal protection, vector control, and blood supply screening.