Evidence map›Paper›PMID 34026115›Full record

ArticleClinical & translational immunology2021

Dynamics of antibodies to SARS-CoV-2 in convalescent plasma donors.

Maurice Steenhuis, Gerard van Mierlo, Ninotska Il Derksen, Pleuni Ooijevaar-de Heer, Simone Kruithof, Floris L Loeff, Lea C Berkhout, Federica Linty, Chantal Reusken, Johan Reimerink and 11 more

Abstract read
In one paragraph

Article in Clinical & translational immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
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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

45 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Hyperimmune immunoglobulin for people with COVID-19.The Cochrane database of systematic reviews · 2023
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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

21 authors.

Maurice SteenhuisDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Gerard van MierloDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Ninotska Il DerksenDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Pleuni Ooijevaar-de HeerDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Simone KruithofDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Floris L LoeffDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Lea C BerkhoutDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Federica LintyDepartment of Experimental Immunohematology Sanquin Research and Landsteiner Laboratory Amsterdam University Medical Centre Amsterdam The Netherlands.
Chantal ReuskenDepartment of Infectious Diseases Public Health Service region Utrecht Utrecht The Netherlands.
Johan ReimerinkDepartment of Infectious Diseases Public Health Service region Utrecht Utrecht The Netherlands.
Boris HogemaDepartment of Virology Sanquin Diagnostic Services Amsterdam The Netherlands.
Hans ZaaijerSanquin Blood Supply Foundation and Amsterdam University Medical Centre Amsterdam The Netherlands.
Leo van de WateringSanquin Blood Bank Unit Transfusion Medicine Leiden The Netherlands.
Francis SwaneveldDepartment of Transfusion Medicine Sanquin Blood Bank Amsterdam The Netherlands.
Marit J van GilsDepartment of Medical Microbiology Amsterdam UMC University of Amsterdam Amsterdam The Netherlands.
Berend Jan BoschVirology Division Department of Infectious Diseases and Immunology Faculty of Veterinary Medicine Utrecht University Utrecht The Netherlands.
S Marieke van HamDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Anja Ten BrinkeDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.
Gestur VidarssonDepartment of Experimental Immunohematology Sanquin Research and Landsteiner Laboratory Amsterdam University Medical Centre Amsterdam The Netherlands.
Ellen C van der SchootDepartment of Experimental Immunohematology Sanquin Research and Landsteiner Laboratory Amsterdam University Medical Centre Amsterdam The Netherlands.
Theo RispensDepartment of Immunopathology Sanquin Research Amsterdam The Netherlands.ORCID https://orcid.org/0000-0001-9600-1312

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesCharacterisation of the human antibody response to SARS-CoV-2 infection is vital for serosurveillance purposes and for treatment options such as transfusion with convalescent plasma or immunoglobulin products derived from convalescent plasma. In this study, we longitudinally and quantitatively analysed antibody responses in RT-PCR-positive SARS-CoV-2 convalescent adults during the first 250 days after onset of symptoms.

methodsWe measured antibody responses to the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein and the nucleocapsid protein in 844 longitudinal samples from 151 RT-PCR-positive SARS-CoV-2 convalescent adults. With a median of 5 (range 2-18) samples per individual, this allowed quantitative analysis of individual longitudinal antibody profiles. Kinetic profiles were analysed by mixed-effects modelling.

resultsAll donors were seropositive at the first sampling moment, and only one donor seroreverted during follow-up analysis. Anti-RBD IgG and anti-nucleocapsid IgG levels declined with median half-lives of 62 and 59 days, respectively, 2-5 months after symptom onset, and several-fold variation in half-lives of individuals was observed. The rate of decline of antibody levels diminished during extended follow-up, which points towards long-term immunological memory. The magnitude of the anti-RBD IgG response correlated well with neutralisation capacity measured in a classic plaque reduction assay and in an in-house developed competitive assay.

conclusionThe result of this study gives valuable insight into the long-term longitudinal response of antibodies to SARS-CoV-2.

Indexed as

ACE2‐competitive ELISAantibodiesCOVID‐19longitudinalneutralisation

Identifiers

PMID34026115
PMCPMC8126762

What OpenQuestion holds

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Registered trials

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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.