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Article: Transmission risk of avian influenza virus along poultry supply chains in Guangdong, China

TitleTransmission risk of avian influenza virus along poultry supply chains in Guangdong, China
Authors
KeywordsAvian influenza virus
Poultry supply chain
Poultry worker
Prevalence
Transmission risk
Issue Date2019
PublisherWB Saunders Co Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jinf
Citation
Journal of Infection, 2019, v. 79 n. 1, p. 43-48 How to Cite?
AbstractObjectives: Avian influenza viruses (AIVs) poise significant risk to human health and the poultry industry. We evaluated the transmission risk along the poultry supply chain. Methods: During October 2015 and July 2016, four rounds of cross-sectional surveys were performed to characterize AIV spread in farms, transport vehicles, slaughterhouses, wholesale and retail live poultry markets (LPMs). Poultry cloacal and oral swabs, environmental swabs, bioaerosol samples and human sera were collected. Poultry and environmental samples were tested for AIVs by rRT-PCR, further subtyped by next generation sequencing. Previous human H9N2 infections were identified by hemagglutination inhibition and microneutralization tests. Logistic regression was fitted to compare AIV transmission risk in different settings. Results: AIVs was detected in 23.9% (424/1771) of the poultry and environmental samples. AIV detection rates in farms, transport vehicles, wholesale and retail LPMs were 4.5%, 11.1%, 30.3% and 51.2%, respectively. 5.2%, 8.3% and 12.8% of the poultry workers were seropositive in farms, wholesale and retail LPMs, respectively. The regression analysis showed that virus detection and transmission risk to human increased progressively along the poultry supply chain. Conclusions: Strengthening control measures at every level along the poultry supply chain, using a one health approach, is crucial to control AIV circulation.
Persistent Identifierhttp://hdl.handle.net/10722/277988
ISSN
2017 Impact Factor: 4.603
2015 SCImago Journal Rankings: 2.070

 

DC FieldValueLanguage
dc.contributor.authorWu, JY-
dc.contributor.authorLau, EHY-
dc.contributor.authorYuan, J-
dc.contributor.authorLu, ML-
dc.contributor.authorXie, CJ-
dc.contributor.authorLi, KB-
dc.contributor.authorMa, XW-
dc.contributor.authorChen, JD-
dc.contributor.authorLiu, YH-
dc.contributor.authorCao, L-
dc.contributor.authorLi, MX-
dc.contributor.authorDi, B-
dc.contributor.authorLiu, YF-
dc.contributor.authorLu, JY-
dc.contributor.authorLi, TG-
dc.contributor.authorXiao, XC-
dc.contributor.authorWang, DH-
dc.contributor.authorYang, ZC-
dc.contributor.authorLu, JH-
dc.date.accessioned2019-10-04T08:05:15Z-
dc.date.available2019-10-04T08:05:15Z-
dc.date.issued2019-
dc.identifier.citationJournal of Infection, 2019, v. 79 n. 1, p. 43-48-
dc.identifier.issn0163-4453-
dc.identifier.urihttp://hdl.handle.net/10722/277988-
dc.description.abstractObjectives: Avian influenza viruses (AIVs) poise significant risk to human health and the poultry industry. We evaluated the transmission risk along the poultry supply chain. Methods: During October 2015 and July 2016, four rounds of cross-sectional surveys were performed to characterize AIV spread in farms, transport vehicles, slaughterhouses, wholesale and retail live poultry markets (LPMs). Poultry cloacal and oral swabs, environmental swabs, bioaerosol samples and human sera were collected. Poultry and environmental samples were tested for AIVs by rRT-PCR, further subtyped by next generation sequencing. Previous human H9N2 infections were identified by hemagglutination inhibition and microneutralization tests. Logistic regression was fitted to compare AIV transmission risk in different settings. Results: AIVs was detected in 23.9% (424/1771) of the poultry and environmental samples. AIV detection rates in farms, transport vehicles, wholesale and retail LPMs were 4.5%, 11.1%, 30.3% and 51.2%, respectively. 5.2%, 8.3% and 12.8% of the poultry workers were seropositive in farms, wholesale and retail LPMs, respectively. The regression analysis showed that virus detection and transmission risk to human increased progressively along the poultry supply chain. Conclusions: Strengthening control measures at every level along the poultry supply chain, using a one health approach, is crucial to control AIV circulation.-
dc.languageeng-
dc.publisherWB Saunders Co Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jinf-
dc.relation.ispartofJournal of Infection-
dc.subjectAvian influenza virus-
dc.subjectPoultry supply chain-
dc.subjectPoultry worker-
dc.subjectPrevalence-
dc.subjectTransmission risk-
dc.titleTransmission risk of avian influenza virus along poultry supply chains in Guangdong, China-
dc.typeArticle-
dc.identifier.emailLau, EHY: ehylau@hku.hk-
dc.identifier.authorityLau, EHY=rp01349-
dc.description.natureeid_2-s2.0-85066118828-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jinf.2019.05.006-
dc.identifier.pmid31100365-
dc.identifier.hkuros306683-
dc.identifier.volume79-
dc.identifier.issue1-
dc.identifier.spage43-
dc.identifier.epage48-
dc.publisher.placeUnited Kingdom-

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