Evidence map›Paper›PMID 34914135›Full record

ArticleJournal of clinical laboratory analysis2022

Dynamic changes of IgM and IgG antibodies in asymptomatic patients as an effective way to detect SARS-CoV-2 infection.

Ping Li, Ge Shen, Zhenhua Zhu, Shengjie Shi, Yan Hu, Ziyan Zeng, Hui Zhou, Qiong Li, Pan Zhu, Gang Yang and 9 more

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 38% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Article
  3. 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

19 authors at 2 institutions in 1 country.

Ping LiMedical Laboratory Center, First Hospital of Hunan University of Chinese Medicine, Changsha, China.ORCID https://orcid.org/0000-0002-7155-2393
Ge ShenLoudi Center for Diseases Control and Prevention, Loudi, China.
Zhenhua ZhuDepartment of Otorhinolaryngology, First Hospital of Hunan University of Chinese Medicine, Changsha, China.
Shengjie ShiMedical Laboratory Center, First Hospital of Hunan University of Chinese Medicine, Changsha, China.
Yan HuMedical Laboratory Center, First Hospital of Hunan University of Chinese Medicine, Changsha, China.
Ziyan ZengLoudi Center for Diseases Control and Prevention, Loudi, China.
Hui ZhouMedical Laboratory Center, First Hospital of Hunan University of Chinese Medicine, Changsha, China.
Qiong LiMedical Laboratory Center, First Hospital of Hunan University of Chinese Medicine, Changsha, China.
Pan ZhuLoudi Center for Diseases Control and Prevention, Loudi, China.
Gang YangLoudi Center for Diseases Control and Prevention, Loudi, China.
Zugui LiuLoudi Center for Diseases Control and Prevention, Loudi, China.
Huiyuan FuLoudi Center for Diseases Control and Prevention, Loudi, China.
Junyu HuLoudi Center for Diseases Control and Prevention, Loudi, China.
Ying HeLoudi Center for Diseases Control and Prevention, Loudi, China.
Qingting YangLoudi Center for Diseases Control and Prevention, Loudi, China.
Miao DaiLoudi Center for Diseases Control and Prevention, Loudi, China.
Dan ZhouLoudi Center for Diseases Control and Prevention, Loudi, China.
Qingqing LuMedical Laboratory Center, First Hospital of Hunan University of Chinese Medicine, Changsha, China.ORCID https://orcid.org/0000-0001-5602-0148
Xiaobing XieMedical Laboratory Center, First Hospital of Hunan University of Chinese Medicine, Changsha, China.ORCID https://orcid.org/0000-0002-9900-0283
Loudi Central Hospital · CNFirst Affiliated Hospital of Hunan University of Traditional Chinese Medicine · CN

Funding

the Innovative Provincial Construction Special Novel Coronavirus Pneumonia Emergency Response Special Topic in Hunan Province Science and Technology Department 2020 2020SK3009the Key Scientific Research Project of Department Education in Hunan Province 20A377
6 · The paper itself

Abstract

backgroundCOVID-19 has become a global pandemic, and close contacts and asymptomatic patients are worthy of attention.

methodsA total of 1844 people in close contacts with 76 COVID-19 patients were investigated, and nasopharyngeal swabs and venous blood were collected for centralized medical quarantine observation. Real-time fluorescence was used to detect SARS-CoV-2 nucleic acid in nasopharyngeal swabs of all close contacts, and the colloidal gold method was used to detect serum-specific antibodies. Levels of IgM- and IgG-specific antibodies were detected quantitatively through chemiluminescence from the first nucleic acid turned negative date (0 week) and on weekly intervals of ≤1 week, 1-2 weeks, 2-3 weeks, 3-4 weeks, 4-5 weeks, 5-6 weeks, and 6-7 weeks.

resultsThe total positive rate of the colloidal gold method (88.5%, 23/26) was significantly higher (χ

conclusionsThe IgG concentration in asymptomatic cases remained at a high level after nucleic acid turned negative. Nucleic acid detection combined with IgM and IgG antibody detection is an effective way to screen asymptomatic infections.

Indexed as

AdultAgedCarrier StateChinaCOVID-19COVID-19 Serological TestingFemaleGold ColloidHumansImmunoglobulin GImmunoglobulin MMaleMiddle AgedGold ColloidImmunoglobulin GImmunoglobulin MasymptomaticCOVID-19IgGIgMSARS-CoV-2

Identifiers

PMID34914135
PMCPMC8761420
OpenAlexW4200318430

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.