Evidence map›Paper›PMID 36567369›Full record

ArticleScientific reports2022

Humoral and cellular immune responses to Lassa fever virus in Lassa fever survivors and their exposed contacts in Southern Nigeria.

Chinedu Ugwu, Testimony Olumade, Ebenezer Nwakpakpa, Venatius Onyia, Elizabeth Odeh, Rosemary Ogonna Duruiheoma, Chiedozie K Ojide, Matthew Afam Eke, Ifeanyi Emmanuel Nwafor, Nneka Chika-Igwenyi and 33 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

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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

43 authors at 10 institutions in 3 countries.

Chinedu UgwuThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Testimony OlumadeThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Ebenezer NwakpakpaAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Venatius OnyiaAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Elizabeth OdehAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Rosemary Ogonna DuruiheomaAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Chiedozie K OjideAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Matthew Afam EkeAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Ifeanyi Emmanuel NwaforAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Nneka Chika-IgwenyiAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Augustine M AbuAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Benedict AzuoguAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Nnennaya AjayiAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Emeka OgahAlex Ekwueme Federal University Teaching Hospital (AEFUTHA), Abakaliki, Nigeria.
Oluwafemi AyodejiFederal Medical Centre Owo, Owo, Nigeria.
Chukwuyem AbejegahFederal Medical Centre Owo, Owo, Nigeria.
Nelson AdedosuFederal Medical Centre Owo, Owo, Nigeria.
Nicholas OyejideThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Sylvester AbahThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Abiola OmideleThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Winifred IngbianThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Emmanuel OsobaThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Philomena EromonThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Paul OluniyiThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Olusola OgunsanyaThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Anise HappiThe Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria.
Patricia OtuhMichael Okpara University of Agriculture, Umudike, Nigeria.
Angalee NadesalingamLab of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK.
George CarnellLab of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK.
Nina KrauseLab of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK.
Ernest AguinamLab of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK.
Rebecca KinsleyLab of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK.
Daniel Matthew L StoristeanuLab of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK.
Paul TonksLab of Viral Zoonotics, Department of Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK.
Diana NelsonZalgen Labs, LCC, Frederick, MD, USA.
Carley McAlisterZalgen Labs, LCC, Frederick, MD, USA.
Matthew BoisenZalgen Labs, LCC, Frederick, MD, USA.
Robert GarryDepartment of Microbiology and Immunology, School of Medicine, Tulane University, 1430 Tulane Avenue, New Orleans, LA, JBJ56870118, USA.
Edward WrightSchool of Life Sciences, University of Sussex, Sussex House, Falmer, Brighton, BN1 9RH, UK.
Nigel TempertonMedway School of Pharmacy, The Universities of Greenwich and Kent Medway, Anson Building, Central Avenue, Chatham Maritime, Chatham, Kent, ME4 4TB, UK.
Simon FrostLondon School of Hygiene & Tropical Medicine, Keppel St, London, WC1E 7HT, UK.
Jonathan Luke Heeney *Michael Okpara University of Agriculture, Umudike, Nigeria. jlh66@cam.ac.uk.
Christian Happi *The Africa Centre of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University Nigeria, Ede, Nigeria. happic@run.edu.ng.
Federal Teaching Hospital Abakaliki · NGRedeemer's University · NGUniversity of Cambridge · GBFederal Medical Centre · NGZalgen (United States) · USMichael Okpara University of Agriculture · NGLondon School of Hygiene & Tropical Medicine · GBMedway School of Pharmacy · GBTulane University · USUniversity of Sussex · GB

Funding

Utilize Microbial Metagenomics for Viral Pathogen CharacterizationU54HG007480 · NHGRI · REDEEMER'S UNIVERSITY · PI HAPPI, CHRISTIAN T. · 2017 to 2022
$5.5M
Host and Microbial Genetic Determinants of Febrile Illness in West AfricaU01HG007480 · NHGRI · REDEEMER'S UNIVERSITY · PI HAPPI, CHRISTIAN T. · 2013 to 2016
$1.6M
Gates Foundation INV-018978NHGRI NIH HHS U01 HG007480NHGRI NIH HHS U54 HG007480Wellcome Trust
6 · The paper itself

Abstract

Elucidating the adaptive immune characteristics of natural protection to Lassa fever (LF) is vital in designing and selecting optimal vaccine candidates. With rejuvenated interest in LF and a call for accelerated research on the Lassa virus (LASV) vaccine, there is a need to define the correlates of natural protective immune responses to LF. Here, we describe cellular and antibody immune responses present in survivors of LF (N = 370) and their exposed contacts (N = 170) in a LASV endemic region in Nigeria. Interestingly, our data showed comparable T cell and binding antibody responses from both survivors and their contacts, while neutralizing antibody responses were primarily seen in the LF survivors and not their contacts. Neutralizing antibody responses were found to be cross-reactive against all five lineages of LASV with a strong bias to Lineage II, the prevalent strain in southern Nigeria. We demonstrated that both T cell and antibody responses were not detectable in peripheral blood after a decade in LF survivors. Notably LF survivors maintained high levels of detectable binding antibody response for six months while their contacts did not. Lastly, as potential vaccine targets, we identified the regions of the LASV Glycoprotein (GP) and Nucleoprotein (NP) that induced the broadest peptide-specific T cell responses. Taken together this data informs immunological readouts and potential benchmarks for clinical trials evaluating LASV vaccine candidates.

Indexed as

Lassa FeverLassa virusAntibodies, NeutralizingHumansImmunity, CellularNigeriaSurvivorsAntibodies, Neutralizing

Identifiers

PMID36567369
PMCPMC9790078
OpenAlexW4313281056

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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.