Evidence map›Paper›PMID 26551677›Full record

ArticleThe Journal of clinical investigation2015

Ebola viral load at diagnosis associates with patient outcome and outbreak evolution.

Marc-Antoine de La Vega, Grazia Caleo, Jonathan Audet, Xiangguo Qiu, Robert A Kozak, James I Brooks, Steven Kern, Anja Wolz, Armand Sprecher, Jane Greig and 10 more

Abstract read
In one paragraph

Article in The Journal of clinical investigation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 3 pooled it
–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

76 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. A systematic review and meta-analysis of patient data from the West Africa (2013-16) Ebola virus disease epidemic.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2019
    Pooled it
  2. Pooled it
  3. Transmissibility and Pathogenicity of Ebola Virus: A Systematic Review and Meta-analysis of Household Secondary Attack Rate and Asymptomatic Infection.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2016
    Pooled it
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  11. Emerging microbes & infections · 2023
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  13. Observational
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  15. Review
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  17. Molecular Communications in Viral Infections Research: Modeling, Experimental Data, and Future Directions.IEEE transactions on molecular, biological, and multi-scale communications · 2021
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  19. Article
  20. Article

16 more citing papers are in PubMed but not listed here.

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

20 authors.

Marc-Antoine de La Vega
Grazia Caleo
Jonathan Audet
Xiangguo Qiu
Robert A Kozak
James I Brooks
Steven Kern
Anja Wolz
Armand Sprecher
Jane Greig
Kamalini Lokuge
David K Kargbo
Brima Kargbo
Antonino Di Caro
Allen Grolla
Darwyn Kobasa
James E Strong
Giuseppe Ippolito
Michel Van Herp
Gary P Kobinger

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundEbola virus (EBOV) causes periodic outbreaks of life-threatening EBOV disease in Africa. Historically, these outbreaks have been relatively small and geographically contained; however, the magnitude of the EBOV outbreak that began in 2014 in West Africa has been unprecedented. The aim of this study was to describe the viral kinetics of EBOV during this outbreak and identify factors that contribute to outbreak progression.

methodsFrom July to December 2014, one laboratory in Sierra Leone processed over 2,700 patient samples for EBOV detection by quantitative PCR (qPCR). Viremia was measured following patient admission. Age, sex, and approximate time of symptom onset were also recorded for each patient. The data was analyzed using various mathematical models to find trends of potential interest.

resultsThe analysis revealed a significant difference (P = 2.7 × 10(-77)) between the initial viremia of survivors (4.02 log10 genome equivalents [GEQ]/ml) and nonsurvivors (6.18 log10 GEQ/ml). At the population level, patient viral loads were higher on average in July than in November, even when accounting for outcome and time since onset of symptoms. This decrease in viral loads temporally correlated with an increase in circulating EBOV-specific IgG antibodies among individuals who were suspected of being infected but shown to be negative for the virus by PCR.

conclusionsOur results indicate that initial viremia is associated with outcome of the individual and outbreak duration; therefore, care must be taken in planning clinical trials and interventions. Additional research in virus adaptation and the impacts of host factors on EBOV transmission and pathogenesis is needed.

Indexed as

Disease OutbreaksEbolavirusModels, BiologicalViral LoadAntibodies, ViralFemaleHemorrhagic Fever, EbolaHumansImmunoglobulin GMaleSierra LeoneAntibodies, ViralImmunoglobulin G

Identifiers

PMID26551677
PMCPMC4665775

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.