Prospective surveillance for influenza. virus in Chinese swine farms

Emerging Microbes & Infections
B D AndersonGregory C Gray

Abstract

Pork production in China is rapidly increasing and swine production operations are expanding in size and number. However, the biosecurity measures necessary to prevent swine disease transmission, particularly influenza. viruses (IAV) that can be zoonotic, are often inadequate. Despite this risk, few studies have attempted to comprehensively study IAV ecology in swine production settings. Here, we present environmental and animal sampling data collected in the first year of an ongoing five-year prospective epidemiological study to assess IAV ecology as it relates to swine workers, their pigs, and the farm environment. From March 2015 to February 2016, we collected 396 each of environmental swab, water, bioaerosol, and fecal/slurry samples, as well as 3300 pig oral secretion samples from six farms in China. The specimens were tested with molecular assays for IAV. Of these, 46 (11.6%) environmental swab, 235 (7.1%) pig oral secretion, 23 (5.8%) water, 20 (5.1%) bioaerosol, and 19 (4.8%) fecal/slurry specimens were positive for influenza. by qRT-PCR. Risk factors for IAV detection among collected samples were identified using bivariate logistic regression. Overall, these first year data suggest that IAV is quite ubiquitous in the s...Continue Reading

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Citations

Sep 20, 2019·Nature·Cassandra Willyard
Sep 11, 2019·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Laura K BorkenhagenGregory C Gray
Mar 19, 2021·Tropical Diseases, Travel Medicine and Vaccines·Emily S BaileyGregory C Gray
Mar 30, 2021·Open Forum Infectious Diseases·Gregory C Gray, Anfal Abdelgadir
Apr 4, 2021·Animals : an Open Access Journal From MDPI·Francesca CarnovaleClive J C Phillips
Apr 12, 2021·Lancet·Liming LiJeffrey P Koplan
May 18, 2021·One Health·Thomas C MooreKristen Pogreba-Brown
Aug 22, 2021·Scientific Reports·Akshaya RameshGregory C Gray
Jan 18, 2022·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Ravendra P Chauhan, Michelle L Gordon

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Methods Mentioned

BETA
BioSampler
PCR

Software Mentioned

STATA

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