Evidence map›Paper›PMID 32017766›Full record

ArticlePLoS neglected tropical diseases2020

Impact of flavivirus vaccine-induced immunity on primary Zika virus antibody response in humans.

Stefan Malafa, Iris Medits, Judith H Aberle, Stephan W Aberle, Denise Haslwanter, Georgios Tsouchnikas, Silke Wölfel, Kristina L Huber, Elena Percivalle, Pascal Cherpillod and 5 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.9field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 38 citations in OpenAlex.

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  4. Integrating metagenomics and metatranscriptomics intoThe Journal of general virology · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 5 institutions in 4 countries.

Stefan MalafaCenter for Virology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-0222-9832
Iris MeditsCenter for Virology, Medical University of Vienna, Vienna, Austria.
Judith H AberleCenter for Virology, Medical University of Vienna, Vienna, Austria.
Stephan W AberleCenter for Virology, Medical University of Vienna, Vienna, Austria.
Denise HaslwanterCenter for Virology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0003-2727-0468
Georgios TsouchnikasCenter for Virology, Medical University of Vienna, Vienna, Austria.
Silke WölfelBundeswehr Institute of Microbiology, Munich, Germany; Center of Infection Research (DZIF) Partner, Munich, Germany.ORCID 0000-0003-3595-3074
Kristina L HuberDivision of Infectious Diseases and Tropical Medicine, Ludwig Maximilian University (LMU), Munich, Germany.
Elena PercivalleMolecular Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Pascal CherpillodLaboratory of Virology, Laboratory Medicine Division, Geneva University Hospitals, Geneva, Switzerland.
Melissa ThalerCenter for Virology, Medical University of Vienna, Vienna, Austria.
Lena RoßbacherCenter for Virology, Medical University of Vienna, Vienna, Austria.
Michael KundiCenter for Public Health, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-2707-3213
Franz X HeinzCenter for Virology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-7191-4331
Karin StiasnyCenter for Virology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-1902-8674
Medical University of Vienna · ATLudwig-Maximilians-Universität München · DEPoliclinico San Matteo Fondazione · ITUniversität der Bundeswehr München · DEUniversity Hospital of Geneva · CH

Funding

Austrian Science Fund FWF P 27501Austrian Science Fund FWF P 29928
6 · The paper itself

Abstract

backgroundZika virus has recently spread to South- and Central America, causing congenital birth defects and neurological complications. Many people at risk are flavivirus pre-immune due to prior infections with other flaviviruses (e.g. dengue virus) or flavivirus vaccinations. Since pre-existing cross-reactive immunity can potentially modulate antibody responses to Zika virus infection and may affect the outcome of disease, we analyzed fine-specificity as well as virus-neutralizing and infection-enhancing activities of antibodies induced by a primary Zika virus infection in flavivirus-naïve as well as yellow fever- and/or tick-borne encephalitis-vaccinated individuals. METHODOLOGY: Antibodies in sera from convalescent Zika patients with and without vaccine-induced immunity were assessed by ELISA with respect to Zika virus-specificity and flavivirus cross-reactivity. Functional analyses included virus neutralization and infection-enhancement. The contribution of IgM and cross-reactive antibodies to these properties was determined by depletion experiments. PRINCIPAL

findingsPre-existing flavivirus immunity had a strong influence on the antibody response in primary Zika virus infections, resulting in higher titers of broadly flavivirus cross-reactive antibodies and slightly lower levels of Zika virus-specific IgM. Antibody-dependent enhancement (ADE) of Zika virus was mediated by sub-neutralizing concentrations of specific IgG but not by cross-reactive antibodies. This effect was potently counteracted by the presence of neutralizing IgM. Broadly cross-reactive antibodies were able to both neutralize and enhance infection of dengue virus but not Zika virus, indicating a different exposure of conserved sequence elements in the two viruses.

conclusionsOur data point to an important role of flavivirus-specific IgM during the transient early stages of infection, by contributing substantially to neutralization and by counteracting ADE. In addition, our results highlight structural differences between strains of Zika and dengue viruses that are used for analyzing infection-enhancement by cross-reactive antibodies. These findings underscore the possible impact of specific antibody patterns on flavivirus disease and vaccination efficacy.

Indexed as

Antibodies, ViralAntibody AffinityAntigens, ViralEnzyme-Linked Immunosorbent AssayHumansImmunoglobulin GNeutralization TestsPolyethylene GlycolsViral Envelope ProteinsViral VaccinesZika VirusZika Virus InfectionAntibodies, ViralAntigens, ViralIgepal CA 720Immunoglobulin GPolyethylene GlycolsViral Envelope ProteinsViral Vaccines

Identifiers

PMID32017766
PMCPMC7021315
OpenAlexW3005278456

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.