Evidence map›Paper›PMID 25298249›Full record

ArticleBMC infectious diseases2014

Detection of a novel avian influenza A (H7N9) virus in humans by multiplex one-step real-time RT-PCR assay.

Jian Fan, David Cui, Siuying Lau, Guoliang Xie, Xichao Guo, Shufa Zheng, Xiaofeng Huang, Shigui Yang, Xianzhi Yang, Zhaoxia Huo and 7 more

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

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  12. Diagnostics-in-a-Suitcase: Development of a portable and rapid assay for the detection of the emerging avian influenza A (H7N9) virus.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2015
    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

17 authors at 3 institutions in 2 countries.

Jian Fan
David Cui
Siuying Lau
Guoliang Xie
Xichao Guo
Shufa Zheng
Xiaofeng Huang
Shigui Yang
Xianzhi Yang
Zhaoxia Huo
Fei Yu
Jianzhou Lou
Li Tian
Xuefen Li
Yuejiao Dong
Qiaoyun Zhu
Yu ChenDepartment of Clinical Laboratory, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, China. chenyu_zy@163.com.
Zhejiang University · CNUniversity of Hong Kong · HKState Key Laboratory of Diagnosis and Treatment of Infectious Diseases

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA novel avian influenza A (H7N9) virus emerged in eastern China in February 2013. 413 confirmed human cases, including 157 deaths, have been recorded as of July 31, 2014.

methodsClinical specimens, including throat swabs, sputum or tracheal aspirates, etc., were obtained from patients exhibiting influenza-like illness (ILIs), especially from those having pneumonia and a history of occupational exposure to poultry and wild birds. RNA was extracted from these samples and a multiplex one-step real-time RT-PCR assay was developed to specifically detect the influenza A virus (FluA). PCR primers targeted the conserved M and Rnase P (RP) genes, as well as the hemagglutinin and neuraminidase genes of the H7N9 virus.

resultsThe multiplex assay specifically detected the avian H7N9 virus, and no cross-reaction with other common respiratory pathogens was observed. The detection limit of the assay was approximately 0.05 50% tissue culture infective doses (TCID50), or 100 copies per reaction. Positive detection of the H7N9 virus in sputum/tracheal aspirates was higher than in throat swabs during the surveillance of patients with ILIs. Additionally, detection of the matrix (M) and Rnase P genes aided in the determination of the novel avian H7N9 virus and ensured the quality of the clinical samples.

conclusionsThese results demonstrate that the multiplex assay detected the novel avian H7N9 virus with high specificity and sensitivity, which is essential for the early diagnosis and treatment of infected patients.

Indexed as

AnimalsChinaDogsFemaleHumansInfluenza A Virus, H7N9 SubtypeInfluenza, HumanLimit of DetectionMadin Darby Canine Kidney CellsMaleMolecular Diagnostic TechniquesMultiplex Polymerase Chain ReactionReal-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain Reaction

Identifiers

PMID25298249
PMCPMC4286936
OpenAlexW1985502719

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Registered trials

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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.