Evidence map›Paper›PMID 25933138›Full record

ArticlePloS one2015

Environmental Sampling for Avian Influenza A(H7N9) in Live-Poultry Markets in Guangdong, China.

Min Kang, Jianfeng He, Tie Song, Shannon Rutherford, Jie Wu, Jinyan Lin, Guofeng Huang, Xiaohua Tan, Haojie Zhong

Abstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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.

Min KangCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.
Jianfeng HeCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.
Tie SongCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.
Shannon RutherfordCentre for Environment and Population Health, School of Environment, Griffith University, Brisbane, Australia.
Jie WuCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.
Jinyan LinCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.
Guofeng HuangCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.
Xiaohua TanCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.
Haojie ZhongCenter for Disease Control and Prevention of Guangdong Province, Guangzhou, People's Republic of China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo provide an increased understanding of avian influenza A(H7N9) activity in live-poultry market in space and time and hence improve H7N9 epidemic control, an ongoing environmental sampling program in multiple live-poultry markets across Guangdong, China was conducted during March 2013-June 2014.

methodsA total of 625 live-poultry markets throughout 21 prefecture areas took part in the study. A total of 10 environmental sites in markets for sampling were identified to represent 4 different poultry-related activity areas. At least 10 environmental samples were collected from each market every month. The real time RT-PCR was performed to detect the avian influenza A(H7N9) virus. Field survey was conducted to investigate the sanitation status of live-poultry markets.

resultsThere were 109 human infections with H7N9 avian influenza in Guangdong, of which 37 (34%) died. A total of 18741 environmental swabs were collected and subjected to real-time RT-PCR test, of which 905(4.83%) were found positive for H7N9 virus. There were 201 (32.16%) markets affected by H7N9 in 16 prefecture areas. The detection of H7N9 virus in markets spiked in winter months. 63.33% markets (38/60) had no physical segregation for poultry holding, slaughter or sale zones. Closing live-poultry market significantly decreased the H7N9 detection rate from 14.83% (112/755) to 1.67% (5/300).

conclusionsThis study indicates the importance of live-poultry market surveillance based on environmental sampling for H7N9 Avian Influenza control. Improving live-poultry market management and sanitation and changing consumer practices are critical to reduce the risk of H7N9 infection.

Indexed as

Environmental MicrobiologyAnimalsChinaGeographyHumansInfluenza A Virus, H7N9 SubtypeInfluenza, HumanInfluenza in BirdsPoultryReal-Time Polymerase Chain Reaction

Identifiers

PMID25933138
PMCPMC4416787

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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.