Meningococcal Deduced Vaccine Antigen Reactivity (MenDeVAR) Index: a rapid and accessible tool that exploits genomic data in public health and clinical microbiology applications

Rodrigues, C. M.C., Jolley, K. A., Smith, A. , Cameron, J. C., Feavers, I. M. and Maiden, M. C.J. (2021) Meningococcal Deduced Vaccine Antigen Reactivity (MenDeVAR) Index: a rapid and accessible tool that exploits genomic data in public health and clinical microbiology applications. Journal of Clinical Microbiology, 59(1), e02161-20. (doi: 10.1128/JCM.02161-20) (PMID:33055180)

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As microbial genomics makes increasingly important contributions to clinical and public health microbiology, the interpretation of whole genome sequence data by non-specialists becomes essential. In the absence of capsule-based vaccines, two protein-based vaccines have been used for the prevention of invasive serogroup B meningococcal disease (IMD), since their licensure in 2013/14. These vaccines have different components and different coverage of meningococcal variants. Hence, decisions regarding which vaccine to use in managing serogroup B IMD outbreaks require information about the index case isolate including: (i) the presence of particular vaccine antigen variants; (ii) the expression of vaccine antigens; and (iii) the likely susceptibility of its antigen variants to antibody-dependent bactericidal killing. To obtain this information requires a multitude of laboratory assays, impractical in real-time clinical settings, where the information is most urgently needed. To facilitate assessment for public health and clinical purposes, we synthesised genomic and experimental data from published sources to develop and implement the ‘Meningococcal Deduced Vaccine Antigen Reactivity’ (MenDeVAR) Index, which is publicly-available on PubMLST ( Using whole genome sequences or individual gene sequences obtained from IMD isolates or clinical specimens, MenDeVAR provides rapid evidence-based information on the presence and possible immunological cross-reactivity of different meningococcal vaccine antigen variants. The MenDeVAR Index enables practitioners who are not genomics specialists to assess the likely reactivity of vaccines for individual cases, outbreak management, or the assessment of public health vaccine programmes. MenDeVAR has been developed in consultation with, but independently of, both vaccine manufacturers.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Smith, Professor Andrew
Authors: Rodrigues, C. M.C., Jolley, K. A., Smith, A., Cameron, J. C., Feavers, I. M., and Maiden, M. C.J.
College/School:College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School
Journal Name:Journal of Clinical Microbiology
Publisher:American Society for Microbiology
ISSN (Online):1098-660X
Published Online:14 October 2020
Copyright Holders:Copyright © 2020 Rodrigues et al.
First Published:First published in Journal of Clinical Microbiology 59(1):e02161-20
Publisher Policy:Reproduced under a Creative Commons license

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