Evidence map›Paper›PMID 42059622›Full record

ArticleJournal of virology2026

Protective human antibodies against Powassan virus.

Georgia Fallon, Stefanie P Muraro, Samuel Ailsworth, Sean Hui, Ryan J Malonis, Alexandra L Tse, Emily Happy Miller, Kartik Chandran, Daved H Fremont, Michael S Diamond and 1 more

Abstract read
In one paragraph

Article in Journal of virology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

11 authors.

Georgia FallonDepartment of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA.ORCID 0000-0002-9355-5501
Stefanie P MuraroDepartment of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA.ORCID 0000-0002-5105-6659
Samuel AilsworthDepartment of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA.ORCID 0000-0003-4418-2275
Sean HuiDepartment of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA.ORCID 0000-0002-9870-6823
Ryan J MalonisDepartment of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA.ORCID 0000-0002-5759-3180
Alexandra L TseDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA.ORCID 0000-0002-1629-6526
Emily Happy MillerDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA.ORCID 0000-0002-0640-5653
Kartik ChandranDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA.
Daved H FremontDepartment of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA.ORCID 0000-0002-8544-2689
Michael S DiamondDepartment of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA.
Jonathan R LaiDepartment of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA.ORCID 0000-0002-4863-0015

Funding

Project 5: mAb Development Flaviviruses and AlphavirusesU19AI181960 · NIAID · WASHINGTON UNIVERSITY · PI DIAMOND, MICHAEL S · 2024 to 2024
$46.7M
Medical Scientist Training ProgramT32GM149364 · NIGMS · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI Myles H. Akabas · 2023 to 2026
$7.5M
Geographic Medicine and Emerging InfectionsT32AI070117 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI WEISS, LOUIS M. · 2008 to 2023
$5.1M
Bigfoot Multispectral High Speed Fluorescence Activated Cell SorterS10OD032169 · OD · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI PORCELLI, STEVEN A · 2022 to 2022
$600k
Engineering Immunity for Broad Protection Against BetacoronavirusesK08AI180364 · NIAID · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI Emily Happy Miller · 2024 to 2026
$599k
Cytek Aurora Multiparameter Flow CytometerS10OD026833 · OD · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI PORCELLI, STEVEN A · 2019 to 2019
$367k
National Institute of Allergy and Infectious Diseases 5N93024C0007NCI NIH HHS P30 CA13330NCI NIH HHS S10OD026833NCI NIH HHS S10OD032169NIAID NIH HHS U19 AI181960NIH HHS K08AI180364NIH HHS T32AI070117NIH HHS T32GM149364ODCDC CDC HHS 75N93022C00035
6 · The paper itself

Abstract

Powassan virus (POWV) is a tick-borne orthoflavivirus that can cause severe neuroinvasive disease. There are no approved vaccines or therapeutics, and the incidence of POWV infection in humans is rising. Here, we isolated and characterized a panel of human monoclonal antibodies (mAbs) from a convalescent donor using single B-cell sorting with POWV EDIII and full-length E ectodomain as antigen bait. Binding and neutralization assays with both POWV reporter virus particles and an authentic strain identified multiple neutralizing mAbs that target distinct epitopes across the E glycoprotein, including EDIII lateral ridge/C-C' loop and non-EDIII regions. Four neutralizing mAbs were evaluated in a lethal mouse challenge, two of which conferred substantial protection. These findings define key targets of the human antibody response to POWV and highlight candidates for the development of human monoclonal antibody therapy for this emerging virus. IMPORTANCE: Powassan virus is an emerging tick-borne orthoflavivirus with steadily increasing case numbers. With an approximately 10% case-fatality rate and no approved therapeutics or vaccines available, POWV represents a potential public health threat. Our results showing that human monoclonal antibodies can protect mice against POWV in a lethal challenge model provide a foundation for developing future effective immunotherapies against this virus.

Indexed as

Antibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralEncephalitis, Tick-BorneEncephalitis Viruses, Tick-BorneAnimalsEpitopesHumansMiceNeutralization TestsViral Envelope ProteinsAntibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralEpitopesViral Envelope Proteinshuman antibodiesmonoclonal antibodyorthoflavivirusPowassan virus

Identifiers

PMID42059622
PMCPMC13185606

What OpenQuestion holds

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LicenceCC BY
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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.