Evidence map›Paper›PMID 25636916›Full record

ArticleVaccine2015

Development and efficacy of a novel live-attenuated QX-like nephropathogenic infectious bronchitis virus vaccine in China.

Keyu Feng, Yu Xue, Jinglan Wang, Weiguo Chen, Feng Chen, Yingzuo Bi, Qingmei Xie

Abstract read
In one paragraph

Article in Vaccine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
–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

27 citing papers in PubMed.

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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

7 authors.

Keyu FengCollege of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, PR China.
Yu XueCollege of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Guangdong Wen's Foodstuff Group Co., Ltd., Guangdong Enterprise Key Laboratory for Animal Health and Environmental Control, Yunfu 527439, PR China.
Jinglan WangLangfang Academy of Agriculture and Forestry Sciences, Langfang 065000, PR China.
Weiguo ChenCollege of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou 510642, PR China.
Feng ChenCollege of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou 510642, PR China.
Yingzuo BiCollege of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou 510642, PR China.
Qingmei XieCollege of Animal Science, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou 510642, PR China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510640, PR China. Electronic address: qmx@scau.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, we attenuated a Chinese QX-like nephropathogenic infectious bronchitis virus (IBV) strain, YX10, by passaging through fertilized chicken eggs. The 90th passage strain (YX10p90) was selected as the live-attenuated vaccine candidate strain. YX10p90 was found to be safe in 7-day-old specific pathogen free chickens without induction of morbidity or mortality. YX10p90 provided nearly complete protection against QX-like (CH I genotype) strains and partial protection against other two major Chinese genotype strains. YX10p90 also showed no reversion to virulence after five back passages in chickens. An IBV polyvalent vaccine containing YX10p90 was developed and showed that it could provide better protection against major Chinese IBV virulent strains than commercial polyvalent vaccines. In addition, the complete genome sequence of YX10p90 was sequenced. Multiple-sequence alignments identified 38 nucleotide substitutions in the whole genome which resulted in 26 amino acid substitutions and a 110-bp deletion in the 3' untranslated region. In conclusion, the attenuated YX10p90 strain exhibited a fine balance between attenuation and immunogenicity, and should be considered as a candidate vaccine to prevent infection of Chinese QX-like nephropathogenic IBV.

Indexed as

3' Untranslated RegionsAmino Acid SubstitutionAnimalsChickensChinaCoronavirus InfectionsCross ProtectionImmunity, HeterologousInfectious bronchitis virusMutation, MissensePoint MutationPoultry DiseasesRNA, ViralSequence Analysis, DNASequence DeletionSerial Passage3' Untranslated RegionsRNA, ViralVaccines, AttenuatedViral VaccinesInfectious bronchitis virusLive-attenuated vaccine strainNephropathogenicQX-like

Identifiers

PMID25636916
PMCPMC7127481

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.