Evidence map›Paper›PMID 29243376›Full record

ArticleInfluenza and other respiratory viruses2018

Comparison of the three waves of avian influenza A(H7N9) virus circulation since live poultry markets were permanently closed in the main urban areas in Zhejiang Province, July 2014-June 2017.

Wei Cheng, Xiaoxiao Wang, Ye Shen, Zhao Yu, Shelan Liu, Jian Cai, Enfu Chen

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Article in Influenza and other respiratory viruses, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

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7citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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7 citing papers in PubMed.

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  5. Resistance of House Fly,The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2019
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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Wei ChengZhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China.
Xiaoxiao WangZhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China.
Ye ShenDepartment of Epidemiology and Biostatistics, University of Georgia, Athens, GA, USA.
Zhao YuZhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China.
Shelan LiuZhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China.
Jian CaiZhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China.
Enfu ChenZhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China.ORCID 0000-0001-5449-1528

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe sudden increase in the number of human cases infected with avian influenza A(H7N9) virus after September 2016 raised global concern.

objectivesTo assess the changes in epidemiological characteristics of H7N9 cases since the massive closure of live poultry markets (LPMs) in the main urban areas in Zhejiang province.

methodsWe used descriptive statistics to compare epidemiological characteristics of the three distinct waves of H7N9 cases in Zhejiang province. The rural or urban cases were defined according to the location where the patients had exposure within 2 weeks before illness onset.

resultsBetween July 2014 and June 2017, 166 H7N9 cases were reported in Zhejiang province, with 45, 34, and 87 cases reported in the third, fourth, and fifth wave, respectively. Across the three waves, most reported cases were from rural areas. A similar percentage of cases in all three waves reported exposure to LPMs, raising poultry at home or around the house, as well as occupational exposure. Compared to the third (80.00%) and fourth wave (70.59%), a significantly larger proportion of cases from the non-LPMs closure areas were observed in the fifth wave (89.66%) (P = .034).

conclusionEpidemiological characteristics of human cases infected with avian influenza A(H7N9) virus had generally remained unchanged since the massive closure of LPMs in the main urban area of Zhejiang province. The sudden increase in the number of H7N9 cases in the fifth wave was mainly attributed to the excessive cases reported from areas where LPMs were not permanently closed.

Indexed as

AdolescentAdultAgedAged, 80 and overAnimalsChildChild, PreschoolChinaEnvironmental ExposureFemaleHumansInfantInfant, NewbornInfluenza A Virus, H7N9 SubtypeInfluenza, HumanMalecomparisonepidemiological characteristicsH7N9 virus

Identifiers

PMID29243376
PMCPMC5820431

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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.