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In Vitro Analysis of Myd88-mediated Cellular Immune Response to West Nile Virus Mutant Strain Infection
Published on: November 27, 2014
7.6K
Current trends in West Nile virus vaccine development
1Najít Technologies, Inc., 505 NW 185th Avenue, Beaverton, OR 97006, USA.
Expert Review of Vaccines
|April 3, 2014
Summary
West Nile virus (WNV) poses a significant public health threat in the US. While promising vaccine candidates show safety and efficacy in trials, further research is crucial for a targeted human vaccination program.
Area of Science:
- Virology
- Epidemiology
- Vaccinology
Background:
- West Nile virus (WNV) is a prevalent mosquito-borne flavivirus in the United States.
- Between 1999 and 2012, WNV caused 37,088 reported cases and 1,549 deaths, indicating a 4.2% case-fatality rate.
- Currently, no vaccine exists for preventing human WNV infection, despite effective vaccines for horses.
Purpose of the Study:
- To review the current status of West Nile virus vaccine development for human use.
- To assess the feasibility of a targeted vaccination program based on promising vaccine candidates.
Main Methods:
- Review of preclinical studies and clinical trials for WNV vaccines.
- Analysis of reported WNV cases and mortality data in the US.
Main Results:
- Eight clinical trials have been conducted, demonstrating promising safety and the induction of antiviral immunity.
- While mass vaccination is not cost-effective, targeted programs may be viable with a safe and effective vaccine.
Conclusions:
- Human WNV vaccination remains a critical unmet medical need.
- Continued evaluation of advanced WNV vaccine candidates is strongly recommended for potential public health implementation.
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