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Vaccines 2014, 2(4), 707-734; doi:10.3390/vaccines2040707

Overview of Serological Techniques for Influenza Vaccine Evaluation: Past, Present and Future

1
Department of Molecular and Developmental Medicine, University of Siena, Via Aldo Moro, 53100 Siena, Italy
2
VisMederi srl, Enterprise in Life Sciences, Via Fiorentina 1, 53100 Siena, Italy
3
Viral Pseudotype Unit, School of Pharmacy, University of Kent, Chatham Maritime, Kent ME4 4TB, UK
*
Author to whom correspondence should be addressed.
Received: 13 June 2014 / Accepted: 22 September 2014 / Published: 13 October 2014
(This article belongs to the Special Issue Influenza Vaccines)
View Full-Text   |   Download PDF [512 KB, uploaded 13 October 2014]   |  

Abstract

Serological techniques commonly used to quantify influenza-specific antibodies include the Haemagglutination Inhibition (HI), Single Radial Haemolysis (SRH) and Virus Neutralization (VN) assays. HI and SRH are established and reproducible techniques, whereas VN is more demanding. Every new influenza vaccine needs to fulfil the strict criteria issued by the European Medicines Agency (EMA) in order to be licensed. These criteria currently apply exclusively to SRH and HI assays and refer to two different target groups—healthy adults and the elderly, but other vaccine recipient age groups have not been considered (i.e., children). The purpose of this timely review is to highlight the current scenario on correlates of protection concerning influenza vaccines and underline the need to revise the criteria and assays currently in use. In addition to SRH and HI assays, the technical advantages provided by other techniques such as the VN assay, pseudotype-based neutralization assay, neuraminidase and cell-mediated immunity assays need to be considered and regulated via EMA criteria, considering the many significant advantages that they could offer for the development of effective vaccines. View Full-Text
Keywords: correlates of protection; EMA criteria; antibody titres correlates of protection; EMA criteria; antibody titres
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Trombetta, C.M.; Perini, D.; Mather, S.; Temperton, N.; Montomoli, E. Overview of Serological Techniques for Influenza Vaccine Evaluation: Past, Present and Future. Vaccines 2014, 2, 707-734.

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