Dengue Plaque Reduction Neutralization Test (PRNT) in Primary and Secondary Dengue Virus Infections: How Alterations in Assay Conditions Impact Performance
Stephen James Thomasa b c d e f✉, Ananda Nisalaka b c d e g, Kathryn B. Andersona b c d e h, Daniel H. Libratya b c d e i, Siripen Kalayanarooja b c d e j, David W. Vaughna b c d e k, Robert J. Putnaka b c d e l, Robert V. Gibbonsa b c d e m, Richard G. Jarmana b c d e g, Timothy P. Endya b c d e h
- aDepartment of Virology, United States Army Medical Component, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
- bDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
- cCenter for Infectious Disease and Vaccine Research, University of Massachusetts Medical School, Worcester, Massachusetts
- dQueen Sirikit National Institute of Child Health, Rajvithi Road, Bangkok, Thailand
- eInfectious Disease Division, Department of Medicine
- fDepartment of Virology, United States Army Medical Component-Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
- gUSAMC
- hSuny Upstate Medical University
- iThailand Ministry of Public Health
- jGlaxoSmithKline
- kArmed Forces Research Institute of Medical Sciences, Thailand
- lWalter Reed Army Institute of Research
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Abstract
Dengue virus (DENV) infection is a worsening global health problem. The plaque reduction neutralization test (PRNT) is currently considered to be the "gold standard" to characterize and quantify circulating levels of anti-DENV neutralizing antibody (NAb). Many variations of the PRNT are currently in use and neither the assay nor its performance conditions have been standardized or harmonized between laboratories. We used a well-characterized panel of acute and late convalescent follow-up sera samples from children experiencing primary and secondary DENV infections to evaluate the performance of the dengue PRNT under a variety of testing conditions. Investigators varied cell type, control virus passage, and the use of complement across multiple assay runs of the same sample panel. Our findings indicate wide variation in PRNT titer results in response to varied testing conditions.
TL;DRWide variation in PRNT titer results in response to varied testing conditions is indicated, indicating wide variation in PRNT titer results in response to varied testing conditions. (Semantic Scholar)