Evidence map›Paper›PMID 34147292›Full record

ArticleVaccine2021

Long-term antibody persistence and exceptional vaccination response on previously SARS-CoV-2 infected subjects.

Davide Ferrari, Chiara Di Resta, Rossella Tomaiuolo, Eleonora Sabetta, Marina Pontillo, Andrea Motta, Massimo Locatelli

Open access · greenAbstract read
In one paragraph

Article in Vaccine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-weighted citation impact, top 14% 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

20 citing papers in PubMed, 26 citations in OpenAlex.

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  18. Harmonization of six quantitative SARS-CoV-2 serological assays using sera of vaccinated subjects.Clinica chimica acta; international journal of clinical chemistry · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Davide FerrariSCVSA Department, University of Parma, 43121 Parma, Italy. Electronic address: davide.ferrari@unipr.it.
Chiara Di RestaIRCCS Ospedale San Raffaele, 20158 Milan, Italy.
Rossella TomaiuoloUniversity Vita-Salute San Raffaele, 20158 Milan, Italy.
Eleonora SabettaIRCCS Ospedale San Raffaele, 20158 Milan, Italy.
Marina PontilloIRCCS Ospedale San Raffaele, 20158 Milan, Italy.
Andrea MottaIRCCS Ospedale San Raffaele, 20158 Milan, Italy.
Massimo LocatelliIRCCS Ospedale San Raffaele, 20158 Milan, Italy.
IRCCS Ospedale San Raffaele · ITUniversity of Parma · ITVita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe first COVID-19 vaccines are being distributed to the general population. However, the shortage of doses is slowing down the goal of reaching herd immunity. The aim of the study was to verify whether previously SARS-CoV-2 infected subjects, a considerable portion of the population, should receive the same vaccination treatment of seronegative individuals.

methodsHealth-professionals either recovered from COVID-19 or never infected by SARS-CoV-2 were serologically tested at different time-points right before, and several days after, vaccination.

resultsPreviously infected individuals showed humoral immune responses, 21 days after the first dose, that was approximately 10-folds higher than the seronegative group 21 days after the second dose. Seropositivity persists for at least 11 months.

conclusionDuring a shortage of COVID-19 vaccine doses, previously SARS-CoV-2 infected individuals should be dispensed from the vaccination campaign. When dose availability returns to normality, injection of a single dose for seropositive individuals should be considered.

Indexed as

COVID-19SARS-CoV-2Antibodies, ViralCOVID-19 VaccinesHumansVaccinationAntibodies, ViralCOVID-19 VaccinesCOVID-19Immune responsemRNA vaccineRoche Anti-SARS-CoV-2-SSerological testVaccination

Identifiers

PMID34147292
PMCPMC8196312
OpenAlexW3169799087

What OpenQuestion holds

Textmetadata
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.