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Even old foes can learn sweet new tricks
James E Crowe1, Robert H Carnahan2
1Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
Cell Host & Microbe
|February 10, 2022
Summary
Researchers investigated the 17D vaccine
Area of Science:
- Virology
- Immunology
- Vaccinology
Background:
- Yellow fever virus (YFV) poses a significant global health threat.
- The YFV 17D vaccine is a widely used and effective preventative measure.
- Understanding vaccine responses is crucial for combating YFV outbreaks.
Purpose of the Study:
- To explore the molecular and functional basis of Yellow Fever Virus (YFV) 17D vaccine responses.
- To compare antibody neutralization between YFV 17D vaccine and related African lineage strains against contemporary Central/South American strains.
- To analyze neutralization of the emergent YFV ES-504 strain.
Main Methods:
- Comparative analysis of YFV strains.
- Antibody neutralization assays.
- Molecular and functional investigations of vaccine responses.
Main Results:
- Detailed characterization of molecular and functional aspects of 17D vaccine responses.
- Identification of differences in antibody neutralization between YFV 17D, African lineage strains, and South American strains.
- Assessment of neutralization against the emergent YFV ES-504 strain.
Conclusions:
- The study provides insights into the mechanisms underlying YFV 17D vaccine efficacy.
- Findings highlight variations in viral strain susceptibility to antibody neutralization.
- This research contributes to a better understanding of YFV evolution and vaccine effectiveness against diverse strains.
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