Evidence map›Paper›PMID 39204040›Full record

ArticleVaccines2024

Baseline Gut Microbiota Was Associated with Long-Term Immune Response at One Year Following Three Doses of BNT162b2.

Li-Na Zhang, Jing-Tong Tan, Ho-Yu Ng, Yun-Shi Liao, Rui-Qi Zhang, Kwok-Hung Chan, Ivan Fan-Ngai Hung, Tommy Tsan-Yuk Lam, Ka-Shing Cheung

Abstract read
In one paragraph

Article in Vaccines, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Foods (Basel, Switzerland) · 2026
    Article
  2. Review
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

9 authors.

Li-Na ZhangDepartment of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.
Jing-Tong TanDepartment of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.ORCID 0000-0002-3973-5376
Ho-Yu NgSchool of Clinical Medicine, The University of Hong Kong, Hong Kong, China.ORCID 0009-0008-7949-5398
Yun-Shi LiaoState Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Hong Kong, China.ORCID 0000-0002-9808-5166
Rui-Qi ZhangDepartment of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.ORCID 0000-0002-4859-3445
Kwok-Hung ChanDepartment of Microbiology, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.ORCID 0000-0003-1771-8249
Ivan Fan-Ngai HungDepartment of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.ORCID 0000-0002-1556-2538
Tommy Tsan-Yuk LamState Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Hong Kong, China.
Ka-Shing CheungDepartment of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.ORCID 0000-0002-4838-378X

Funding

Food and Health Bureau, The Government of HKSAR COVID1903010
6 · The paper itself

Abstract

backgroundThis study explored neutralizing IgG antibody levels against COVID-19 decline over time post-vaccination. We conducted this prospective cohort study to investigate the function of gut microbiota in the host immune response following three doses of BNT162b2.

methodsSubjects who received three doses of BNT162b2 were recruited from three centers in Hong Kong. Blood samples were obtained before the first dose and at the one-year timepoint for IgG ELISA to determine the level of neutralizing antibody (NAb). The primary outcome was a high immune response (NAb > 600 AU/mL). We performed shotgun DNA metagenomic sequencing on baseline fecal samples to identify bacterial species and metabolic pathways associated with high immune response using linear discriminant analysis effect size analysis.

resultsA total of 125 subjects were recruited (median age: 52 years [IQR: 46.2-59.0]; male: 43 [34.4%]), and 20 were regarded as low responders at the one-year timepoint.

conclusionAmong three-dose BNT162b2 recipients,

Indexed as

COVID-19gastrointestinal microbiomeimmunogenicityvaccine

Identifiers

PMID39204040
PMCPMC11359560

What OpenQuestion holds

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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.