Please use this identifier to cite or link to this item: https://doi.org/10.1371/journal.pone.0128479
Title: Serological evidence and risk factors for swine influenza infections among Chinese swine workers in guangdong province
Authors: Ma M. 
Anderson B.D.
Wang T.
Chen Y.
Zhang D.
Gray G.C. 
Lu J.
Keywords: virus antigen
influenza vaccine
virus antibody
adult
age distribution
antibody blood level
Article
China
Chinese
controlled study
cross-sectional study
female
hemagglutination inhibition test
human
Influenza A virus (H1N1)
Influenza A virus (H3N2)
male
middle aged
prevalence
respiratory tract disease
risk factor
self report
seroepidemiology
serology
seroprevalence
swine influenza
worker
animal
epidemiology
immunology
influenza
pig
procedures
risk factor
virology
Adult
Animals
Antibodies, Viral
Antigens, Viral
China
Cross-Sectional Studies
Female
Hemagglutination Inhibition Tests
Humans
Influenza A Virus, H1N1 Subtype
Influenza A Virus, H3N2 Subtype
Influenza Vaccines
Influenza, Human
Male
Middle Aged
Risk Factors
Seroepidemiologic Studies
Swine
Issue Date: 2015
Publisher: Public Library of Science
Citation: Ma M., Anderson B.D., Wang T., Chen Y., Zhang D., Gray G.C., Lu J. (2015). Serological evidence and risk factors for swine influenza infections among Chinese swine workers in guangdong province. PLoS ONE 10 (5) : e0128479. ScholarBank@NUS Repository. https://doi.org/10.1371/journal.pone.0128479
Abstract: During July to September 2014, we performed a controlled, cross-sectional, seroepidemiologic study among 203 swine workers and 115 control subjects in Guangdong Province. Sera were tested using a hemagglutination inhibition assay against locally-isolated swine H3N2 and H1N1 viruses and commercially-obtained human influenza viral antigens. We found swine workers had a greater prevalence and odds of seropositivity against the swine H3N2 virus (17.3% vs. 7.0%; adjusted OR, 3.4; 95% CI, 1.1 -10.7). Younger age, self-report of a respiratory illness during the last 12 months, and seropositivity against seasonal H3N2 virus were identified as significant risk factors for seropositivity against swine H3N2 virus. As swine workers in China may be exposed to novel influenza viruses, it seems prudent for China to conduct special surveillance for such viruses among them. It also seems wise to offer such workers seasonal influenza vaccines with a goal to reduce cross-species influenza virus transmission. © 2015 Ma et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Source Title: PLoS ONE
URI: https://scholarbank.nus.edu.sg/handle/10635/165695
ISSN: 19326203
DOI: 10.1371/journal.pone.0128479
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