Evidence map›Paper›PMID 38149927›Full record

ArticleInfluenza and other respiratory viruses2023

Avian influenza A(H5) virus circulation in live bird markets in Vietnam, 2017-2022.

Diep T Nguyen, Kelsey M Sumner, Thoa T M Nguyen, Minh Q Phan, Tien M Hoang, Chuong D Vo, Tho D Nguyen, Phuong T Nguyen, Genyan Yang, Yunho Jang and 5 more

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PubMed Full text at PMC Publisher
In one paragraph

Article in Influenza and other respiratory viruses, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

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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

9 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

15 authors.

Diep T NguyenDepartment of Animal Health, Hanoi, Vietnam.
Kelsey M SumnerInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.ORCID 0000-0002-4479-897X
Thoa T M NguyenInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Minh Q PhanDepartment of Animal Health, Hanoi, Vietnam.
Tien M HoangDepartment of Animal Health, Hanoi, Vietnam.
Chuong D VoDepartment of Animal Health, Hanoi, Vietnam.
Tho D NguyenNational Center for Veterinary Diagnosis, Department of Animal Health, Hanoi, Vietnam.
Phuong T NguyenRegional Animal Health Officer Number 6, Department of Animal Health, Ho Chi Minh City, Vietnam.
Genyan YangInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Yunho JangInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Joyce JonesInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Sonja J OlsenInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Philip L GouldInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Long V NguyenDepartment of Animal Health, Hanoi, Vietnam.
Charles Todd DavisInfluenza Division, National Center for Immunizations and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.

Funding

CDC HHS
6 · The paper itself

Abstract

backgroundHighly pathogenic avian influenza A(H5) human infections are a global concern, with many A(H5) human cases detected in Vietnam, including a case in October 2022. Using avian influenza virus surveillance from March 2017-September 2022, we described the percent of pooled samples that were positive for avian influenza A, A(H5), A(H5N1), A(H5N6), and A(H5N8) viruses in live bird markets (LBMs) in Vietnam.

methodsMonthly at each LBM, 30 poultry oropharyngeal swab specimens and five environmental samples were collected. Samples were pooled in groups of five and tested for influenza A, A(H5), A(H5N1), A(H5N6), and A(H5N8) viruses by real-time reverse-transcription polymerase chain reaction. Trends in the percent of pooled samples that were positive for avian influenza were summarized by LBM characteristics and time and compared with the number of passively detected avian influenza outbreaks using Spearman's rank correlation.

resultsA total of 25,774 pooled samples were collected through active surveillance at 167 LBMs in 24 provinces; 36.9% of pooled samples were positive for influenza A, 3.6% A(H5), 1.9% A(H5N1), 1.1% A(H5N6), and 0.2% A(H5N8). Influenza A(H5) viruses were identified January-December and at least once in 91.7% of sampled provinces. In 246 A(H5) outbreaks in poultry; 20.3% were influenza A(H5N1), 60.2% A(H5N6), and 19.5% A(H5N8); outbreaks did not correlate with active surveillance.

conclusionsIn Vietnam, influenza A(H5) viruses were detected by active surveillance in LBMs year-round and in most provinces sampled. In addition to outbreak reporting, active surveillance for A(H5) viruses in settings with high potential for animal-to-human spillover can provide situational awareness.

Indexed as

Influenza A virusInfluenza A Virus, H5N1 SubtypeInfluenza A Virus, H5N8 SubtypeInfluenza, HumanInfluenza in BirdsAnimalsDisease OutbreaksHumansVietnamavian influenzalive bird marketspoultrysurveillanceVietnam

Identifiers

PMID38149927
PMCPMC10752245

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LicenceCC BY
Read underepoch 390

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.