Evidence map›Paper›PMID 34981720›Full record

ArticleBiomedical and environmental sciences : BES2021

Kinetic Characteristics of Neutralizing Antibody Responses Vary among Patients with COVID-19.

Ling Hua Li, Hong Wei Tu, Dan Liang, Chun Yan Wen, An An Li, Wei Yin Lin, Ke Qi Hu, Wen Shan Hong, Yue Ping Li, Juan Su and 9 more

Open access · greenAbstract read
In one paragraph

Article in Biomedical and environmental sciences : BES, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.1field-weighted citation impact, top 55% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. 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 4 institutions in 1 country.

Ling Hua LiGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
Hong Wei TuGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
Dan LiangGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
Chun Yan WenGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
An An LiSchool of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, China.
Wei Yin LinGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
Ke Qi HuSchool of Public Health, Southern Medical University, Guangzhou 510515, Guangdong, China.
Wen Shan HongShantou University Medical College, Shantou 515063, Guangdong, China.
Yue Ping LiGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
Juan SuGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
San Tao ZhaoGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
Wei LiGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
Run Yu YuanGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
Ping Ping ZhouGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
Feng Yu HuGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
Xiao Ping TangGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
Chang Wen KeGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
Bi Xia KeGuangdong Provincial Center for Diseases Control and Prevention, Guangzhou 511430, Guangdong, China.
Wei Ping CaiGuangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, Guangdong, China.
Guangzhou Medical University · CNGuangzhou Eighth People's Hospital · CNSouthern Medical University · CNShantou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe coronavirus disease 2019 (COVID-19) pandemic continues to present a major challenge to public health. Vaccine development requires an understanding of the kinetics of neutralizing antibody (NAb) responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

methodsIn total, 605 serum samples from 125 COVID-19 patients (from January 1 to March 14, 2020) varying in age, sex, severity of symptoms, and presence of underlying diseases were collected, and antibody titers were measured using a micro-neutralization assay with wild-type SARS-CoV-2.

resultsNAbs were detectable approximately 10 days post-onset (dpo) of symptoms and peaked at approximately 20 dpo. The NAb levels were slightly higher in young males and severe cases, while no significant difference was observed for the other classifications. In follow-up cases, the NAb titer had increased or stabilized in 18 cases, whereas it had decreased in 26 cases, and in one case NAbs were undetectable at the end of our observation. Although a decreasing trend in NAb titer was observed in many cases, the NAb level was generally still protective.

conclusionWe demonstrated that NAb levels vary among all categories of COVID-19 patients. Long-term studies are needed to determine the longevity and protective efficiency of NAbs induced by SARS-CoV-2.

Indexed as

AdultAgedAged, 80 and overAntibodies, NeutralizingAntibodies, ViralCOVID-19FemaleHumansKineticsMaleMiddle AgedNeutralization TestsSARS-CoV-2Antibodies, NeutralizingAntibodies, ViralKineticsNeutralizing antibodySARS-CoV-2Sex

Identifiers

PMID34981720
PMCPMC8747431
OpenAlexW4205160052

What OpenQuestion holds

Textmetadata
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.