期刊
VIROLOGY JOURNAL
卷 11, 期 -, 页码 -出版社
BIOMED CENTRAL LTD
DOI: 10.1186/1743-422X-11-48
关键词
Dengue; Plaque reduction neutralization test; Neutralizing antibody
类别
资金
- Thai Ministry of Public Health
- Pediatric Dengue Vaccine Initiative
- Faculty of Tropical Medicine, Mahidol University, Thailand
Background: The plaque reduction neutralization test (PRNT) is currently the best and most widely accepted approach to measuring virus-neutralizing and protective antibodies to dengue virus, and in assessing the immunogenicity of a dengue vaccine. However, the correlation between presence of dengue-neutralizing antibody and protection from infection is not absolute. Findings: In a cohort study in Ratchaburi Province, Thailand, 48 subjects with serologically confirmed symptomatic dengue infection were tested for pre-existing dengue neutralizing antibody using PRNT. Nine subjects had quite high pre-existing PRNT50 titers (titer >90) to subsequent infecting dengue serotypes, but still had symptomatic infections. Conclusion: This report provides evidence that PRNT may not be a good test for predicting protection against subsequent dengue infection.
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