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Updated: Jun 23, 2026

Optimization of a Quantitative Micro-neutralization Assay
Published on: December 14, 2016
Micro-Focus Reduction Neutralization Tests (mFRNT) for Neutralizing Antibody (Nab) Quantification Against Yellow
Adriana de Souza Azevedo1, Nathalia Dos Santos Alves2
1Laboratory of Immunomolecular Analysis, Institute of Technology in Immunobiologicals (Bio-Manguinhos), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil. adriana.soares@bio.fiocruz.br.
Abstract:
Although the plaque reduction neutralization test (PRNT) is considered the reference for measuring neutralizing antibodies for Yellow fever virus (YFV), the micro-focus reduction neutralization test (mFRNT) presents many advantages including a higher throughput, a reduced incubation time, and allows the automatic foci count. So, here we describe a detailed mFRNT method that provides a faster neutralization test essential for non-clinical and clinical studies and vaccine design.

