Evidence map›Paper›PMID 35062762›Full record

ArticleVaccines2022

Evaluation of Transplacental Antibody Transfer in SARS-CoV-2-Immunized Pregnant Women.

Ching-Ju Shen, Yi-Chen Fu, Yen-Pin Lin, Ching-Fen Shen, Der-Ji Sun, Huan-Yun Chen, Chao-Min Cheng

Open access · goldAbstract read
In one paragraph

Article in Vaccines, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  12. Maternal and Perinatal Outcomes of SARS-CoV-2 and Variants in Pregnancy.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2023
    Article
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  14. Article
  15. Article
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  17. Covid-19 vaccination in pregnancy.BMJ (Clinical research ed.) · 2022
    Review
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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

7 authors at 3 institutions in 1 country.

Ching-Ju ShenDepartment of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.ORCID 0000-0002-9975-4210
Yi-Chen FuInstitute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan.
Yen-Pin LinInstitute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan.
Ching-Fen ShenDepartment of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan.ORCID 0000-0001-5926-0462
Der-Ji SunDepartment of Obstetrics and Gynecology, Pojen Hospital, Kaohsiung 804, Taiwan.
Huan-Yun ChenDepartment of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan.
Chao-Min ChengInstitute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan.ORCID 0000-0002-8644-1960
Kaohsiung Medical University · TWNational Tsing Hua University · TWKaohsiung Chang Gung Memorial Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection during pregnancy could result in adverse perinatal outcome. Clinical data on the assessment of the immune response in vaccinated pregnant women and subsequent transplacental antibody transfer are quite limited.

objectiveTo assess maternal and neonatal neutralizing antibody levels against both wildtype and Delta (B.1.617.2) variants after maternal mRNA vaccination. STUDY

designThis cohort study was conducted 29 pregnant women who were vaccinated at least one dose of Moderna (mRNA-1273) vaccine. Both neutralizing antibody (wildtype and Delta variant) and S1 receptor binding domain IgG antibody levels were evaluated in maternal and cord blood on the day of delivery.

resultsSuperiority of antibody level was significant in fully vaccinated women compared with the one-dose group (maternal sera, median, 97.46%; cord sera, median, 97.37% versus maternal sera, median, 4.01%; cord sera, median, 1.44%). No difference in antibody level was noted in relation to interval of second immunization to delivery in the two-dose group (95.99% in 0-2 weeks, 97.45% in 2-4 weeks, 97.48% in 4-8 weeks, 97.72% in 8-10 weeks). The most pronounced reduction was observed for the Delta variant. The wildtype neutralizing antibody level of full-vaccinated women was not influenced by the pertussis vaccination.

conclusionThe data underscore the importance of full vaccination in pregnancy and support the recommendation of COVID-19 immunization for pregnant women. The lower level of vaccine-induced neutralizing antibodies for the Delta variant indicates insufficient protection for mother and newborn and highlights the need for development of effective vaccine strategies.

Indexed as

cord bloodCOVID-19 vaccineDelta variantmaternal immunityneutralizing antibodypregnancy

Identifiers

PMID35062762
PMCPMC8778956
OpenAlexW4205315839

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.