Subclinical Influenza Virus A Infections in Pigs Exhibited at Agricultural Fairs, Ohio, USA, 2009–2011

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Bowman, Andrew S. ; Nolting, Jacqueline M. ; Nelson, Sarah W. ; Slemons, Richard D.
• Description:
  Agricultural fairs are associated with bidirectional, interspecies transmission of influenza virus A between humans and pigs. We examined pigs exhibited at agricultural fairs in Ohio during 2009-2011 for signs of influenza-like illness and collected nasal swab specimens from a representative subset of these animals. Influenza virus A was recovered from pigs at 12/53 (22.6%) fairs during the 3-year sampling period. Pigs at 10/12 (83.3%) fairs from which influenza virus A was recovered did not show signs of influenza-like illness. Hemagglutinin, neuraminidase, and matrix gene combinations of the isolates were consistent with influenza virus A concurrently circulating among swine herds in the United States. Subclinical influenza virus A infections in pigs at agricultural fairs may pose a risk to human health and create challenges for passive surveillance programs for influenza virus A in swine herds.
• Subjects:
  Animals Cell Line Hemagglutinin Glycoproteins, Influenza Virus Influenza A Virus Neuraminidase Orthomyxoviridae Infections Research Serotyping Swine Swine Diseases Viral Matrix Proteins

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• Source:
  Emerg Infect Dis. 18(12):1945-1950.
• Document Type:
  Journal Article
• Place as Subject:
  Ohio
• Location:
  North America
• Volume:
  18
• Issue:
  12
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:f5f843e220fcda6491185254bd9e2e65d5d5f980d1690537ea699304d0cbb68b
• Download URL:
  https://stacks.cdc.gov/view/cdc/18960/cdc_18960_DS1.pdf
• File Type:
  [PDF - 221.41 KB ]