Evidence map›Paper›PMID 32419649›Full record

ArticleEmerging microbes & infections2020

Zika structural genes determine the virulence of African and Asian lineages.

Bruno T D Nunes, Camila R Fontes-Garfias, Chao Shan, Antonio E Muruato, Jannyce G C Nunes, Rommel M R Burbano, Pedro F C Vasconcelos, Pei-Yong Shi, Daniele B A Medeiros

Open access · goldAbstract read
In one paragraph

Article in Emerging microbes & infections, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 19 citations in OpenAlex.

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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

9 authors at 4 institutions in 6 countries.

Bruno T D NunesDepartment of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Brazil.ORCID https://orcid.org/0000-0002-0793-9665
Camila R Fontes-GarfiasDepartment of Biochemistry & Molecular Biology, Galveston, TX, USA.
Chao ShanDepartment of Biochemistry & Molecular Biology, Galveston, TX, USA.
Antonio E MuruatoDepartment of Biochemistry & Molecular Biology, Galveston, TX, USA.
Jannyce G C NunesDepartment of Biochemistry & Molecular Biology, Galveston, TX, USA.
Rommel M R BurbanoHealth Sciences Institute, Belem, Brazil.
Pedro F C VasconcelosDepartment of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Brazil.
Pei-Yong ShiDepartment of Biochemistry & Molecular Biology, Galveston, TX, USA.
Daniele B A MedeirosDepartment of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute, Ministry of Health, Ananindeua, Brazil.
Galveston College · USAmazon Research Foundation · BRJohn Sealy Hospital · USUniversidade do Estado do Pará · BR

Funding

Project 4 - Influenza - UABU19AI142759 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI WHITLEY, RICHARD J. · 2019 to 2023
$37.5M
Revolutionary Eilat-based Chikungunya Vaccine VectorR01AI127744 · NIAID · UNIVERSITY OF TEXAS MED BR GALVESTON · PI WANG, TIAN · 2017 to 2021
$3.5M
UTMB Clinical and Translational Science AwardTL1TR001440 · NCATS · UNIVERSITY OF TEXAS MED BR GALVESTON · PI HOMMEL, JONATHAN DEAN · 2015 to 2024
$3.4M
Discovery of Zika virus therapeutics using a replicon assayR41AI136126 · NIAID · MICROBIOTIX, INC · PI BOWLIN, TERRY L. · 2018 to 2019
$585k
NCATS NIH HHS TL1 TR001440NIAID NIH HHS R01 AI127744NIAID NIH HHS R41 AI136126NIAID NIH HHS U19 AI142759
6 · The paper itself

Abstract

The Asian lineage of Zika virus (ZIKV) is responsible for the recent epidemics in the Americas and severe disease, whereas the African lineage of ZIKV has not been reported to cause epidemics or severe disease. We constructed a cDNA infectious clone (IC) of an African ZIKV strain, which, together with our previously developed Asian ZIKV strain IC, allowed us to engineer chimeric viruses by swapping the structural and non-structural genes between the two lineages. Recombinant parental and chimeric viruses were analyzed in A129 and newborn CD1 mouse models. In the A129 mice, the African strain developed higher viremia, organ viral loading, and mortality rate. In CD1 mice, the African strain exhibited a higher neurovirulence than the Asian strain. A chimeric virus containing the structural genes from the African strain is more virulent than the Asian strain, whereas a chimeric virus containing the non-structural genes from the African strain exhibited a virulence comparable to the Asian strain. These results suggest that (i) African strain is more virulent than Asian strain and (ii) viral structural genes primarily determine the virulence difference between the two lineages in mouse models. Other factors may contribute to the discrepancy between the mouse and epidemic results.

Indexed as

Genes, ViralGenetic VariationZika VirusAfricaAmericasAnimalsAsiaChlorocebus aethiopsDisease Models, AnimalHumansMiceVero CellsVirulenceZika Virus InfectionAfricanAsianlineagesvirulenceZika

Identifiers

PMID32419649
PMCPMC8284969
OpenAlexW3026070949

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.