Evidence map›Paper›PMID 34326343›Full record

ArticleNature communications2021

SARS-CoV-2 specific T cell responses are lower in children and increase with age and time after infection.

Carolyn A Cohen, Athena P Y Li, Asmaa Hachim, David S C Hui, Mike Y W Kwan, Owen T Y Tsang, Susan S Chiu, Wai Hung Chan, Yat Sun Yau, Niloufar Kavian and 6 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 2% 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

97 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
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  7. Observational
  8. The ageing immune system and its battle with viruses.The Journal of general virology · 2026
    Review
  9. Article
  10. Broad beta-CoV immunity and transmission blockade by a single-dose live-attenuated vaccine with atypical codon usage.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 4 institutions in 2 countries.

Carolyn A CohenHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.
Athena P Y LiHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.
Asmaa HachimHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.
David S C HuiDepartment of Medicine and Therapeutics, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, SAR, China.ORCID 0000-0003-4382-2445
Mike Y W KwanDepartment of Paediatric and Adolescent Medicine, Hong Kong Hospital Authority Infectious Disease Center, Princess Margaret Hospital, Hong Kong, SAR, China.ORCID 0000-0002-1476-9625
Owen T Y TsangInfectious Diseases Centre, Princess Margaret Hospital, Hospital Authority of Hong Kong, Hong Kong SAR, China.
Susan S ChiuDepartment of Paediatric and Adolescent Medicine, The University of Hong Kong and Queen Mary Hospital, Hospital Authority of Hong Kong, Hong Kong SAR, China.
Wai Hung ChanDepartment of Paediatrics, Queen Elizabeth Hospital, Hospital Authority of Hong Kong, Hong Kong SAR, China.ORCID 0000-0002-9256-4799
Yat Sun YauDepartment of Paediatrics, Queen Elizabeth Hospital, Hospital Authority of Hong Kong, Hong Kong SAR, China.ORCID 0000-0002-5471-9139
Niloufar KavianHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.
Fionn N L MaHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.
Eric H Y LauWHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.ORCID 0000-0002-6688-9637
Samuel M S ChengDivision of Public Health Laboratory Sciences, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.
Leo L M PoonHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.ORCID 0000-0002-9101-7953
Malik PeirisHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China.ORCID 0000-0001-8217-5995
Sophie A ValkenburgHKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China. sophiev@hku.hk.ORCID 0000-0002-0768-9926
HKU-Pasteur Research Pole · HKHospital Authority · HKUniversity of Hong Kong · HKChinese University of Hong Kong · HK

Funding

Emerging infections: surveillance, epidemiology and pathogenesisU01AI151810 · NIAID · WASHINGTON UNIVERSITY · PI Adrianus CM Boon, DAVID WANG · 2020 to 2026
$10.0M
NIAID NIH HHS HHSN272201400006CNIAID NIH HHS U01 AI151810
6 · The paper itself

Abstract

SARS-CoV-2 infection of children leads to a mild illness and the immunological differences with adults are unclear. Here, we report SARS-CoV-2 specific T cell responses in infected adults and children and find that the acute and memory CD4

Indexed as

AdolescentAdultAgedAge FactorsAntibodies, ViralCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesChildChild, PreschoolCOVID-19FemaleHumansInfantInflammationLongitudinal StudiesMaleAntibodies, Viral

Identifiers

PMID34326343
PMCPMC8322064
OpenAlexW3192052690

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.