Evidence map›Paper›PMID 34460832›Full record

ArticlePloS one2021

Associations of SARS-CoV-2 serum IgG with occupation and demographics of military personnel.

Joseph Zell, Adam V Wisnewski, Jian Liu, Jon Klein, Carolina Lucas, Martin Slade, Akiko Iwasaki, Carrie A Redlich

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. 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
0.1field-weighted citation impact, top 58% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Article
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

8 authors at 2 institutions in 1 country.

Joseph ZellDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States of America.
Adam V WisnewskiDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States of America.ORCID 0000-0003-2461-9409
Jian LiuDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States of America.
Jon KleinDepartment of Immunobiology, Yale University School of Medicine, New Haven, CT, United States of America.
Carolina LucasDepartment of Immunobiology, Yale University School of Medicine, New Haven, CT, United States of America.
Martin SladeDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States of America.
Akiko IwasakiDepartment of Immunobiology, Yale University School of Medicine, New Haven, CT, United States of America.ORCID 0000-0002-7824-9856
Carrie A RedlichDepartment of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States of America.
Yale University · USHoward Hughes Medical Institute · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
ACL HHS T03OH008607NCATS NIH HHS UL1 TR001863NIOSH CDC HHS T01 OH008607NIOSH CDC HHS T03 OH008607
6 · The paper itself

Abstract

backgroundCountries across the globe have mobilized their armed forces in response to COVID-19, placing them at increased risk for viral exposure. Humoral responses to SARS-CoV-2 among military personnel serve as biomarkers of infection and provide a basis for disease surveillance and recognition of work-related risk factors.

methodsEnzyme-linked immunosorbent assays (ELISA) were used to measure SARS-CoV-2 spike antigen-specific IgG in serum obtained from N = 988 US National Guard soldiers between April-June 2020. Occupational information, e.g. military operating specialty (MOS) codes, and demographic data were obtained via questionnaire. Plaque assays with live SARS-CoV-2 were used to assess serum neutralizing capacity for limited subjects (N = 12).

resultsThe SARS-CoV-2 IgG seropositivity rate among the study population was 10.3% and significantly associated with occupation and demographics. Odds ratios were highest for those working in MOS 2T-Transportation (3.6; 95% CI 0.7-18) and 92F-Fuel specialist/ground and aircraft (6.8; 95% CI 1.5-30), as well as black race (2.2; 95% CI 1.2-4.1), household size ≥6 (2.5; 95% CI 1.3-4.6) and known COVID-19 exposure (2.0; 95% CI 1.2-3.3). Seropositivity tracked along major interstate highways and clustered near the international airport and the New York City border. SARS-CoV-2 spike IgG+ serum exhibited low to moderate SARS-CoV-2 neutralizing capacity with IC50s ranging from 1:15 to 1:280. In limited follow-up testing SARS-CoV-2 serum IgG levels remained elevated up to 7 months.

conclusionsThe data highlight increased SARS-CoV-2 seroprevalence among National Guard vs. the local civilian population in association with transportation-related occupations and specific demographics.

Indexed as

AdolescentAdultAgedAntibodies, NeutralizingAntibodies, ViralCOVID-19DemographyEnzyme-Linked Immunosorbent AssayFemaleHumansImmunoglobulin GMaleMiddle AgedMilitary PersonnelOdds RatioSARS-CoV-2Antibodies, NeutralizingAntibodies, ViralImmunoglobulin GSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2

Identifiers

PMID34460832
PMCPMC8405017
OpenAlexW3196739083

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.