Characterization of Viral Load, Viability and Persistence of Influenza a Virus in Air and on Surfaces of Swine Production Facilities

Details

• Personal Author:
  Gibbs SG ; Neira V ; Paccha B ; Rabinowitz P ; Rendahl A ; Torremorell M
• Description:
  Indirect transmission of influenza A virus (IAV) in swine is poorly understood and information is lacking on levels of environmental exposure encountered by swine and people during outbreaks of IAV in swine barns. We characterized viral load, viability and persistence of IAV in air and on surfaces during outbreaks in swine barns. IAV was detected in pigs, air and surfaces from five confirmed outbreaks with 48% (47/98) of oral fluid, 38% (32/84) of pen railing and 43% (35/82) of indoor air samples testing positive by IAV RT-PCR. IAV was isolated from air and oral fluids yielding a mixture of subtypes (H1N1, H1N2 and H3N2). Detection of IAV RNA from air was sustained during the outbreaks with maximum levels estimated between 7 and 11 days from reported onset. Our results indicate that during outbreaks of IAV in swine, aerosols and surfaces in barns contain significant levels of IAV potentially representing an exposure hazard to both swine and people. [Description provided by NIOSH]
• Subjects:
  Aerosols Agriculture Animal Husbandry Animals Communicable Diseases Environmental Exposure Livestock Occupational Health Safety Viral Diseases
• Keywords:
  Animal Husbandry Disease Transmission Environmental Exposure Infectious Diseases Swine Flu Swine Influenza Viral Diseases
• ISSN:
  1932-6203
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Connecticut ; Indiana ; Minnesota ; OSHA Region 1 ; OSHA Region 10 ; OSHA Region 5 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  11
• Issue:
  1
• NIOSHTIC Number:
  nn:20063730
• Citation:
  PLoS One 2016 Jan; 11(1):e0146616
• Contact Point Address:
  Montserrat Torremorell, University of Minnesota, Saint Paul, Minnesota, United States of America
• Email:
  torr0033@umn.edu
• Federal Fiscal Year:
  2016
• Performing Organization:
  University of Washington
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  PLoS One
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:40a6497f83f1b9e4c0267d56824fc0572b23995295a3e363170e5f42dcea889fcbd9ede25cc67e925d9ab1841abaf31e0d955f71906ba2abc9ea54af8e6d04b4
• Download URL:
  https://stacks.cdc.gov/view/cdc/222291/cdc_222291_DS1.pdf
• File Type:
  [PDF - 288.58 KB ]